Open fracture
Is there clinical evidence of infection?
- If the wound is contaminated with soil or faeces (such as with farm injuries) or has been in
contact with fresh or salt water then infectious diseases should be contacted immediately for
targeted treatment.
Open fracture
Does the patient have a penicillin allergy?
(See below for details on penicillin allergy severity)
History of penicillin allergy or adverse reaction
No penicillin allergy
- This includes non-severe reactions such as nausea and limited diarrhoea
- Such reactions are frequently not replicable or generalizable to the whole class. It is safe to
prescribe penicillin class antibiotics (with the patient’s knowledge), and if required, use
strategies for symptom control such as metoclopramide
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated
allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe
to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions
such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug
reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your
patient has a history of these, contact infectious diseases for advice
Penicillin anaphylaxis is highly likely if any ONE of the following is fulfilled:
1. Acute onset of an illness (minutes to several hours)
involving the skin, mucosal tissue, or both (eg, generalised hives, pruritus or flushing,
swollen lips-tongue-uvula) and at least one of:
- Respiratory compromise (eg, dyspnea, wheeze/bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
OR
- Reduced blood pressure (BP) or associated symptoms and signs of end-organ
malperfusion (eg, hypotonia [collapse] syncope, incontinence)
OR
2. TWO OR MORE OF THE FOLLOWING that occur rapidly
after exposure to penicillin for that patient (within minutes to several hours):
- Involvement of the skin-mucosal tissue (eg, generalized hives, itch-flush, swollen
lips-tongue-uvula)
- Respiratory compromise (eg, dyspnea, wheeze-bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
- Reduced BP or associated symptoms (eg, hypotonia [collapse], syncope,
incontinence)
- Persistent gastrointestinal symptoms and signs (eg, crampy abdominal pain,
vomiting)
OR
3. Reduced BP after exposure to penicillin in a patient
with known penicillin allergy (within minutes to several hours)
- Reduced BP in adults is defined as a systolic BP of less than 90 mmHg or greater than 30
percent decrease from that person's baseline
- In infants and children, reduced BP is defined as low systolic BP (age-specific)
or greater than 30 percent decrease in systolic BP
- i.e. Less than 70 mmHg from 1 month up to 1 year
- Less than (70 mmHg + [2 x age]) from 1 to 10 years
- Less than 90 mmHg from 11 to 17 years
Open fracture
Does the patient have a penicillin allergy?
(See below for details on penicillin allergy severity)
History of penicillin allergy or adverse reaction
No penicillin allergy
- This includes non-severe reactions such as nausea and limited diarrhoea
- Such reactions are frequently not replicable or generalizable to the whole class. It is safe to
prescribe penicillin class antibiotics (with the patient’s knowledge), and if required, use
strategies for symptom control such as metoclopramide
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated
allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe
to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions
such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug
reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your
patient has a history of these, contact infectious diseases for advice
Penicillin anaphylaxis is highly likely if any ONE of the following is fulfilled:
1. Acute onset of an illness (minutes to several hours)
involving the skin, mucosal tissue, or both (eg, generalised hives, pruritus or flushing,
swollen lips-tongue-uvula) and at least one of:
- Respiratory compromise (eg, dyspnea, wheeze/bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
OR
- Reduced blood pressure (BP) or associated symptoms and signs of end-organ
malperfusion (eg, hypotonia [collapse] syncope, incontinence)
OR
2. TWO OR MORE OF THE FOLLOWING that occur rapidly
after exposure to penicillin for that patient (within minutes to several hours):
- Involvement of the skin-mucosal tissue (eg, generalized hives, itch-flush, swollen
lips-tongue-uvula)
- Respiratory compromise (eg, dyspnea, wheeze-bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
- Reduced BP or associated symptoms (eg, hypotonia [collapse], syncope,
incontinence)
- Persistent gastrointestinal symptoms and signs (eg, crampy abdominal pain,
vomiting)
OR
3. Reduced BP after exposure to penicillin in a patient
with known penicillin allergy (within minutes to several hours)
- Reduced BP in adults is defined as a systolic BP of less than 90 mmHg or greater than 30
percent decrease from that person's baseline
- In infants and children, reduced BP is defined as low systolic BP (age-specific)
or greater than 30 percent decrease in systolic BP
- i.e. Less than 70 mmHg from 1 month up to 1 year
- Less than (70 mmHg + [2 x age]) from 1 to 10 years
- Less than 90 mmHg from 11 to 17 years
Open fracture prophylaxis
If there is serious tissue damage or clinical evidence of infection
give:
① Cefazolin 2 g (child: 50 mg/kg up
to 2 g) IV, 8-hourly
OR If the wound has been immersed in water (eg injuries sustained in a
natural disaster, marine injuries)
① Cefepime 2 g (child: 50 mg/kg up
to 2 g) IV, 8-hourly
For a maximum of 3 days (longer if there is evidence of established
infection)
AND If the wound is heavily contaminated with material embedded in bone or deep
soft tissues (eg agriculture injuries, injuries involving sewage) ADD
Metronidazole 500 mg (child: 12.5 mg/kg up to 500 mg) IV,
12-hourly
For a maximum of 3 days (longer if there is evidence of established
infection)
Code for cefepime is:
3opf
This code is valid for THREE days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 72 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- Regardless of injury severity, the total duration of prophylaxis should be no more than 72 hours,
even if soft tissue coverage is not achievable
- Prophylaxis for nonsevere injuries comparable to Gustilo–Anderson type I or II (open fractures
resulting from indirect injury or direct, low-energy injury) can be discontinued at definitive
wound closure
- If there is likely to be a delay in accessing cefepime, give an immediate dose of cefazolin (as
above), because the benefit of prophylaxis is greatest when it is given immediately after
injury. Switch to cefepime as soon as it is available
References:
See section on open fractures - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Open fracture prophylaxis
If the patient has immediate severe penicillin hypersensitivity give:
Clindamycin 600 mg (child: 15 mg/kg up to 600 mg) IV,
8-hourly.
AND if the wound has been immersed in water ADD
Ciprofloxacin 400 mg (child: 10 mg/kg up to 400 mg) IV,
8-hourly
For a maximum of 3 days (longer if there is evidence of established
infection) this code is valid for both IV or oral ciprofloxacin and clindamycin
Code for ciprofloxacin and clindamycin iv is:
3opf
This code is valid for THREE days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past 72 hours.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Regardless of injury severity, the total duration of prophylaxis should be no more than 72 hours,
even if soft tissue coverage is not achievable
- Prophylaxis for nonsevere injuries comparable to Gustilo–Anderson type I or II (open fractures
resulting from indirect injury or direct, low-energy injury) can be discontinued at definitive
wound closure
- For patients who have adequate oral absorption and can tolerate oral therapy, step down to clindamycin
450 mg (child: 10 mg/kg up to 450 mg) orally, 8-hourly. If the wound has been immersed in water ADD on
ciprofloxacin 750 mg (child: 20 mg/kg up to 750 mg) orally, 12-hourly
References:
See the section on open fractures - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Open fracture treatment
If treating established infection with no penicillin allergy give:
Piperacillin+tazobactam 4+0.5 g (child: 100+12.5 mg/kg up to 4+0.5
g) IV, 6-hourly
OR if the wound has been immersed in water, replace piperacillin+tazobactam with:
Cefepime 2 g (child: 50 mg/kg up to 2 g) IV, 8-hourly
AND
Metronidazole 500 mg (child: 12.5 mg/kg up to 500 mg) IV,
12-hourly
AND with either of the above regimens, if the patient has sepsis or septic shock,
or is at increased risk of MRSA ADD
Code for piperacillin or cefepime is:
7opc
This code is valid for SEVEN days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past one week. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for vancomycin is:
2opc
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- Patients with severe tissue damage or evidence of infection all need presumptive treatment for 7
days total. Patients with established bone infection usually require a longer duration of IV
antibiotic therapy followed by oral continuation therapy
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See the section on open fractures - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Open fracture treatment
If treating established infection with delayed penicillin hypersensitivity
give:
Cefepime 2 g (child: 50 mg/kg up to 2 g) IV, 8-hourly
AND
Metronidazole 500 mg (child: 12.5 mg/kg up to 500 mg) IV,
12-hourly
AND with the above regimen, if the patient has sepsis or septic shock, or is at
increased risk of MRSA ADD
Code for cefepime is:
7opc
This code is valid for SEVEN days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past one week. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for vancomycin is:
2opc
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- Patients with severe tissue damage or evidence of infection all need presumptive treatment for 7
days total. Patients with established bone infection usually require a longer duration of IV
antibiotic therapy followed by oral continuation therapy
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 14 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 7 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
Call infectious diseases |
Call infectious diseases |
Call infectious diseases |
--- |
40-49 |
750 mg 48 hly |
750 mg 24 hly |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg 12 hly |
1 hr 40 min |
65-79 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg 12 hly |
2 hrs 5 min |
80-94 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg 12 hly |
2 hrs 30 min |
95-110 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg 12 hly |
3 hrs |
> 110 |
Call infectious diseases |
Call infectious diseases |
Call infectious diseases |
--- |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See the section on open fractures - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Open Fracture Treatment
If the patient has immediate severe penicillin hypersensitivity give:
Clindamycin 600 mg (child: 15 mg/kg up to 600 mg) IV,
8-hourly.
AND
Ciprofloxacin 400 mg (child: 10 mg/kg up to 400 mg) IV,
8-hourly
Code for ciprofloxacin and clindamycin iv is:
7opf
This code is valid for SEVEN days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past one week.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Please contact infectious diseases in patients who have sepsis or septic shock, or are at increased risk of MRSA infection
- Patients with severe tissue damage or evidence of infection all need presumptive treatment for 7
days total. Patients with established bone infection usually require a longer duration of IV
antibiotic therapy followed by oral continuation therapy
References:
See the section on open fractures - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Osteomyelitis
Does the patient have a penicillin allergy?
See below for details on penicillin allergy severity
History of penicillin allergy or adverse reaction
No penicillin allergy
- This includes non-severe reactions such as nausea and limited diarrhoea
- Such reactions are frequently not replicable or generalizable to the whole class. It is safe to
prescribe penicillin class antibiotics (with the patient’s knowledge), and if required, use
strategies for symptom control such as metoclopramide
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated
allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe
to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions
such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug
reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your
patient has a history of these, contact infectious diseases for advice
Penicillin anaphylaxis is highly likely if any ONE of the following is fulfilled:
1. Acute onset of an illness (minutes to several hours)
involving the skin, mucosal tissue, or both (eg, generalised hives, pruritus or flushing,
swollen lips-tongue-uvula) and at least one of:
- Respiratory compromise (eg, dyspnea, wheeze/bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
OR
- Reduced blood pressure (BP) or associated symptoms and signs of end-organ
malperfusion (eg, hypotonia [collapse] syncope, incontinence)
OR
2. TWO OR MORE OF THE FOLLOWING that occur rapidly
after exposure to penicillin for that patient (within minutes to several hours):
- Involvement of the skin-mucosal tissue (eg, generalized hives, itch-flush, swollen
lips-tongue-uvula)
- Respiratory compromise (eg, dyspnea, wheeze-bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
- Reduced BP or associated symptoms (eg, hypotonia [collapse], syncope,
incontinence)
- Persistent gastrointestinal symptoms and signs (eg, crampy abdominal pain,
vomiting)
OR
3. Reduced BP after exposure to penicillin in a patient
with known penicillin allergy (within minutes to several hours)
- Reduced BP in adults is defined as a systolic BP of less than 90 mmHg or greater than 30
percent decrease from that person's baseline
- In infants and children, reduced BP is defined as low systolic BP (age-specific)
or greater than 30 percent decrease in systolic BP
- i.e. Less than 70 mmHg from 1 month up to 1 year
- Less than (70 mmHg + [2 x age]) from 1 to 10 years
- Less than 90 mmHg from 11 to 17 years
Osteomyelitis with no penicillin allergy
Is the patient an adult or a child?
- For treatment of osteomyelitis in a neonate please contact infectious diseases
Osteomyelitis with non-severe penicillin hypersensitivity
Is the patient an adult or a child?
- For treatment of osteomyelitis in a neonate please contact infectious diseases
Osteomyelitis with severe penicillin reaction
Is the patient an adult or a child?
- For treatment of osteomyelitis in a neonate please contact infectious diseases
Child osteomyelitis with no penicillin allergy
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Child osteomyelitis with no penicillin allergy
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Adult osteomyelitis with no penicillin allergy
Where is the osteomyelitis located?
Adult osteomyelitis with no penicillin allergy
Is the patient showing signs of sepsis?
Signs of Sepsis:
SIRS response: ≥2 of: |
AND presence of refractory hypotension or hypoperfusion |
Temp <36 or >38
Heart rate > 90
Resp Rate > 20
WCC > 12.0 or < 4.0
|
Hypotension:
- systolic BP< 90 mmHg OR 40 mmHg below premorbid BP AFTER at least
500 mL fluid challenge
Hypoperfusion:
- Lactate ≥4 mmol/L OR Bicarbonate <16mmol/L
|
- See the management of severe sepsis section in the Australian Therapeutic Guidelines for more
information on identifying a septic patient
Adult osteomyelitis with non-severe penicillin hypersensitivity
Where is the osteomyelitis located?
Adult osteomyelitis with severe penicillin hypersensitivity
Where is the osteomyelitis located?
Adult vertebral osteomyelitis with no penicillin hypersensitivity
Does the patient have signs of compromise after neurological examination?
(see below)
- Select yes if the patient has either signs of neurological compromise, or spinal, paraspinal or
epidural spinal abscess
Adult vertebral osteomyelitis with non-severe penicillin hypersensitivity
Does the patient have signs of compromise after neurological examination?
(see below)
- Select yes if the patient has either signs of neurological compromise, or spinal, paraspinal or
epidural spinal abscess
Adult vertebral osteomyelitis with severe penicillin hypersensitivity
Does the patient have signs of compromise after neurological examination?
(see below)
- Select yes if the patient has either signs of neurological compromise, or spinal, paraspinal or
epidural spinal abscess
Adult vertebral osteomyelitis with no penicillin allergy
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Adult vertebral osteomyelitis with non-severe penicillin hypersensitivity
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Adult vertebral osteomyelitis with severe penicillin reaction
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Adult long bone osteomyelitis with no penicillin allergy
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Adult long bone osteomyelitis with non-severe penicillin hypersensitivity
Is MRSA infection suspected?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Osteomyelitis:
For osteomyelitis treatment in a child with non-severe or no penicillin
hypersensitivity, at risk of MRSA give:
Vancomycin, as per the nomogram below
AND, if Kingella kingae is proven or suspected (see below)
ADD either:
① Cefotaxime 50 mg/kg up to 2 g
intravenously, 8-hourly
OR
① Ceftriaxone 50 mg/kg up to 2 g
intravenously, daily
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for cefotaxime or ceftriaxone is:
5ost
This code is valid for FIVE days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past five days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- K. kingae infections can be comcomitant with upper respiratory diseases or stomatitis, since
disrupted respiratory or buccal mucosa is likely to facilitate bacterial invasion and hematogenous
dissemination. K. kingae should be considered in children younger than 4 years who fail to
improve rapidly with antistaphylococcal therapy
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- Children usually require a shorter duration of therapy than adults because their bones have an
excellent blood supply. Intravenous therapy should generally be continued until blood culture
results are negative, the child is afebrile and has clinically improved, and C-reactive protein
(CRP) or erythrocyte sedimentation rate (ESR) is decreasing
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy. In children, bone biopsy is not
required if there is a good response to empirical antibiotic therapy, even if blood culture results
are negative
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Osteomyelitis:
For osteomyelitis treatment in a child with no penicillin hypersensitivity,
not at risk of MRSA give:
Flucloxacillin 50 mg/kg up to 2 g intravenously, 6-hourly
AND, if Kingella kingae is proven or suspected (see below)
ADD either:
① Cefotaxime 50 mg/kg up to 2 g
intravenously, 8-hourly
OR
① Ceftriaxone 50 mg/kg up to 2 g
intravenously, daily
Code for cefotaxime or ceftriaxone is:
5ost
This code is valid for FIVE days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past five days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- K. kingae infections can be comcomitant with upper respiratory diseases or stomatitis, since
disrupted respiratory or buccal mucosa is likely to facilitate bacterial invasion and hematogenous
dissemination. K. kingae should be considered in children younger than 4 years who fail to
improve rapidly with antistaphylococcal therapy
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- Children usually require a shorter duration of therapy than adults because their bones have an
excellent blood supply. Intravenous therapy should generally be continued until blood culture
results are negative, the child is afebrile and has clinically improved, and C-reactive protein
(CRP) or erythrocyte sedimentation rate (ESR) is decreasing
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy. In children, bone biopsy is not
required if there is a good response to empirical antibiotic therapy, even if blood culture results
are negative
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Osteomyelitis:
For osteomyelitis treatment in a child with non-severe penicillin
hypersensitivity, not at risk of MRSA give:
Cefazolin 50 mg/kg up to 2 g intravenously, 8-hourly
AND, if Kingella kingae is proven or suspected (see below)
ADD either:
① Cefotaxime 50 mg/kg up to 2 g
intravenously, 8-hourly
OR
① Ceftriaxone 50 mg/kg up to 2 g
intravenously, daily
Code for cefotaxime or ceftriaxone is:
5ost
This code is valid for FIVE days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past five days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- K. kingae infections can be comcomitant with upper respiratory diseases or stomatitis, since
disrupted respiratory or buccal mucosa is likely to facilitate bacterial invasion and hematogenous
dissemination. K. kingae should be considered in children younger than 4 years who fail to
improve rapidly with antistaphylococcal therapy
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- Children usually require a shorter duration of therapy than adults because their bones have an
excellent blood supply. Intravenous therapy should generally be continued until blood culture
results are negative, the child is afebrile and has clinically improved, and C-reactive protein
(CRP) or erythrocyte sedimentation rate (ESR) is decreasing
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy. In children, bone biopsy is not
required if there is a good response to empirical antibiotic therapy, even if blood culture results
are negative
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Osteomyelitis:
For osteomyelitis treatment in a child with severe penicillin
hypersensitivity:
Vancomycin, as per the nomogram below
Please contact infectious diseases if Kingella kingae is proven
or suspected (see below)
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- K. kingae infections can be comcomitant with upper respiratory diseases or stomatitis, since
disrupted respiratory or buccal mucosa is likely to facilitate bacterial invasion and hematogenous
dissemination. K. kingae should be considered in children younger than 4 years who fail to
improve rapidly with antistaphylococcal therapy
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- Children usually require a shorter duration of therapy than adults because their bones have an
excellent blood supply. Intravenous therapy should generally be continued until blood culture
results are negative, the child is afebrile and has clinically improved, and C-reactive protein
(CRP) or erythrocyte sedimentation rate (ESR) is decreasing
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy. In children, bone biopsy is not
required if there is a good response to empirical antibiotic therapy, even if blood culture results
are negative
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult long bone osteomyelitis with no MRSA or penicillin allergy
Adult long bone osteomyelitis with no MRSA or penicillin allergy should be
treated with:
Flucloxacillin 2 g IV, 6-hourly.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult leg or foot osteomyelitis (non-diabetic)
If patient tolerates penicillin use as a single agent:
Amoxicillin + clavulanate
intravenously
adult: |
1 + 0.2 g 6-hourly, |
Code for IV Amoxicillin+Clavulanate is:
5ost
This code is valid for FIVE days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if treatment is to
continue past five days. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- This regimen will not cover MRSA. Risk factors for MRSA infection include: residence in a jail or
detention centre, indigenous heritage, previous MRSA colonisation and line associated infection.
Contact infectious diseases if MRSA infection is suspected
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult long bone osteomyelitis
Adult long bone osteomyelitis with no MRSA and non-severe penicillin
hypersensitivity should be treated with:
Cefazolin 2 g intravenously, 8-hourly
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult long bone osteomyelitis
Adult long bone osteomyelitis with MRSA or severe penicillin
hypersensitivity treat with:
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis with no MRSA or penicillin allergy
Adult vertebral osteomyelitis with no MRSA or penicillin allergy and normal
neurological examination should be treated with:
Withhold antibiotic therapy until a microbiological diagnosis is made in all adults
who have a normal neurological examination.
Only treat empirically with the treatment below
if microbiological diagnosis cannot be made.
Flucloxacillin 2 g IV, 6-hourly.
- Contact infectious diseases if the patient has suspected gram negative infection
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis
Adult vertebra osteomyelitis with no MRSA and non-severe penicillin
hypersensitivity should be treated with:
Withhold antibiotic therapy until a microbiological diagnosis is made in all adults
who have a normal neurological examination.
Only treat empirically with the treatment below
if microbiological diagnosis cannot be made.
Cefazolin 2 g intravenously, 8-hourly
- Contact infectious diseases if the patient has suspected gram negative infection
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis
For adult vertebral osteomyelitis with severe penicillin hypersensitivity
and no MRSA risk factors treat with:
Withhold antibiotic therapy until a microbiological diagnosis is made in all adults
who have a normal neurological examination.
Only treat empirically with the treatment below
if microbiological diagnosis cannot be made.
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
- Contact infectious diseases if the patient has suspected gram negative infection
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples before antibiotic therapy is started. Once a microbiological diagnosis is
made, modify therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Vertebral Osteomyelitis treatment
If a patient with vertebral osteomyelitis has MRSA risk factors then
treatment is complex. Contact infectious diseases for advice
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic guidelines:
antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis
For adult vertebral osteomyelitis with neurological compromise and no
penicillin allergy treat with:
Flucloxacillin 2 g IV, 6-hourly.
AND,
AND,
Ceftriaxone 2 g IV, 12-hourly.
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for ceftriaxone is:
4ost
This code is valid for FOUR days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past four days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- If there is only a single line it is best to give the other antibiotics before starting vancomycin
as vancomycin has a lengthy infusion time
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples as soon as possible. Once a microbiological diagnosis is made, modify
therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis
For adult vertebral osteomyelitis with neurological compromise and
non-severe penicillin hypersensitivity treat with:
Ceftriaxone 2 g IV, 12-hourly.
AND,
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for ceftriaxone is:
4ost
This code is valid for FOUR days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past four days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- If there is only a single line it is best to give the ceftriaxone before starting vancomycin as
vancomycin has a lengthy infusion time
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples as soon as possible. Once a microbiological diagnosis is made, modify
therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Adult vertebral osteomyelitis
For adult vertebral osteomyelitis with neurological compromise and severe
penicillin hypersensitivity treat with:
Ciprofloxacin 400 mg intravenously, 8-hourly
AND,
Code for vancomycin is:
2ost
This code is valid for TWO days only, starting from the
first day of treatment for this condition. Infectious diseases must be contacted if IV treatment is
to continue past 48 hours. Please annotate this code on the medication chart and document when
infectious diseases are to be contacted in the patient notes.
Code for ciprofloxacin IV is:
4ost
This code is valid for FOUR days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if treatment is to continue past four days. Please
annotate this code on the medication chart and document when infectious diseases are to be contacted
in the patient notes.
- If there is only a single line it is best to give the ciprofloxacin before starting vancomycin as
vancomycin has a lengthy infusion time
- This regimen is for both acute and chronic osteomyelitis until a microbiological diagnosis is made.
Obtain diagnostic samples as soon as possible. Once a microbiological diagnosis is made, modify
therapy accordingly
- If the patient is septic please treat as per sepsis
treatment pathway
- For adults or children with osteomyelitis associated with prosthetic material, seek expert advice
- Prolonged antibiotic therapy is required to cure osteomyelitis. Recommended duration of therapy for vertebral osteomyelitis is usually a total of 6 weeks of antibiotic therapy (IV PO). Though this can vary depending on the patient’s age, whether the infection is acute or chronic, the pathogen, presence of collections and the patient’s clinical response. Intravenous antibiotic therapy is almost always required initially, but oral antibiotic therapy is usually preferred to complete the treatment course
- To cure chronic osteomyelitis, surgical debridement of necrotic bone and sequestra is essential
- Collect blood samples for culture because more than 50% of patients with vertebral or acute
long-bone osteomyelitis have bacteraemia. To increase blood culture yield, adults should have two
sets of samples (ie four bottles) collected. If blood culture results are positive, bone biopsy is
generally unnecessary. However, if no organism, or an organism of questionable significance (eg a
commensal organism such as a coagulase-negative staphylococcus), is identified, it is critical to
collect suitable samples of bone or pus for culture and histopathology. These samples should be
collected by radiologically guided percutaneous or open biopsy
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on osteomyelitis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Empirical Septic Arthritis Treatment
Please note this section is for empiric treatment of septic arthritis before
results of culture.
Take diagnostic samples before starting antibiotic therapy
Does the patient have a penicillin allergy?
(See below for details on penicillin allergy severity)
History of penicillin allergy or adverse reaction
No penicillin allergy
- This includes non-severe reactions such as nausea and limited diarrhoea
- Such reactions are frequently not replicable or generalizable to the whole class. It is safe to
prescribe penicillin class antibiotics (with the patient’s knowledge), and if required, use
strategies for symptom control such as metoclopramide
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated
allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe
to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions
such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug
reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your
patient has a history of these, contact infectious diseases for advice
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated
allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe
to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions
such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug
reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your
patient has a history of these, contact infectious diseases for advice
Penicillin anaphylaxis is highly likely if any ONE of the following is fulfilled:
1. Acute onset of an illness (minutes to several hours)
involving the skin, mucosal tissue, or both (eg, generalised hives, pruritus or flushing,
swollen lips-tongue-uvula) and at least one of:
- Respiratory compromise (eg, dyspnea, wheeze/bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
OR
- Reduced blood pressure (BP) or associated symptoms and signs of end-organ
malperfusion (eg, hypotonia [collapse] syncope, incontinence)
OR
2. TWO OR MORE OF THE FOLLOWING that occur rapidly
after exposure to penicillin for that patient (within minutes to several hours):
- Involvement of the skin-mucosal tissue (eg, generalized hives, itch-flush, swollen
lips-tongue-uvula)
- Respiratory compromise (eg, dyspnea, wheeze-bronchospasm, stridor, reduced peak
expiratory flow, hypoxemia)
- Reduced BP or associated symptoms (eg, hypotonia [collapse], syncope,
incontinence)
- Persistent gastrointestinal symptoms and signs (eg, crampy abdominal pain,
vomiting)
OR
3. Reduced BP after exposure to penicillin in a patient
with known penicillin allergy (within minutes to several hours)
- Reduced BP in adults is defined as a systolic BP of less than 90 mmHg or greater than 30
percent decrease from that person's baseline
- In infants and children, reduced BP is defined as low systolic BP (age-specific)
or greater than 30 percent decrease in systolic BP
- i.e. Less than 70 mmHg from 1 month up to 1 year
- Less than (70 mmHg + [2 x age]) from 1 to 10 years
- Less than 90 mmHg from 11 to 17 years
Empiric Septic Arthritis Treatment
Is the septic arthritis associated with a diabetic foot or leg ulcer or
vascular insufficiency?
Empiric Septic Arthritis Treatment
Is the septic arthritis associated with a diabetic foot or leg ulcer or
vascular insufficiency?
Empiric Septic Arthritis Treatment
Is the patient at risk of methicillin-resistant Staphylococcus aureus
(MRSA) infection?
- Risk factors for MRSA infection include;
- residence in an area with a high prevalence of MRSA (e.g. Regions north of metropolitan Perth in Western Australia, especially the Kimberly and Pilbara; Northern Territory and remote communities in northern Queensland;)
- known or suspected to be colonised with methicillin-resistant Staphylococcus aureus
(MRSA)
- previous colonisation or infection with MRSA, particularly if recent or associated with the
current episode of care
- frequent stays, or a current prolonged stay, in a hospital with a high prevalence of MRSA,
particularly if associated with antibiotic exposure or recent surgery
- residence in an aged-care facility with a high prevalence of MRSA, particularly if the
patient has had multiple courses of antibiotics
- an intravascular catheter-related infection in a unit with a significant incidence of MRSA
infection
Empiric Septic Arthritis Treatment
Is the patient at risk of methicillin-resistant Staphylococcus aureus
(MRSA) infection?
- Risk factors for MRSA infection include;
- residence in an area with a high prevalence of MRSA (e.g. Regions north of metropolitan Perth in Western Australia, especially the Kimberly and Pilbara; Northern Territory and remote communities in northern Queensland;)
- known or suspected to be colonised with methicillin-resistant Staphylococcus aureus
(MRSA)
- previous colonisation or infection with MRSA, particularly if recent or associated with the
current episode of care
- frequent stays, or a current prolonged stay, in a hospital with a high prevalence of MRSA,
particularly if associated with antibiotic exposure or recent surgery
- residence in an aged-care facility with a high prevalence of MRSA, particularly if the
patient has had multiple courses of antibiotics
- an intravascular catheter-related infection in a unit with a significant incidence of MRSA
infection
Empiric Septic Arthritis Treatment
For empirical therapy in a patient with no penicillin allergy and no MRSA
risk factors, while awaiting the results of cultures and susceptibility use:
Flucloxacillin 2 g (child 50 mg/kg up to 2 g) IV, 6-hourly
Suggested Antibiotic Duration for Septic Arthritis |
Patient age |
Intravenous (minimum) |
Total (intravenous + oral) |
neonate |
3 weeks |
3 weeks (all intravenously) |
child |
3 days |
3 weeks |
adult |
2 weeks |
4 weeks |
- The durations of therapy suggested in this table should be modified according to clinical response.
- These treatment durations do not apply to gonococcal arthritis, which should be treated for a total
of 7 days
- If the patient is clinically improving, an earlier switch to oral therapy may be possible, as long
as there is an appropriate oral antimicrobial available that is as effective as intravenous therapy
(eg ciprofloxacin, clindamycin). Conversely, some patients need a longer duration of intravenous
therapy than recommended in this table. Seek expert advice
- Take diagnostic samples before starting antibiotic therapy to exclude alternative or coexisting
diagnoses (such as an acute crystal arthropathy) and enable antibiotic therapy to be directed.
Appropriate diagnostic samples include blood for culture, and a joint aspirate for Gram stain,
culture and microscopy
- Joint aspiration should be performed by experienced clinicians, using an aseptic technique. When
performing diagnostic aspiration, aspirating the bulk of the effusion can offer therapeutic
benefits. Aspiration should be as complete as possible without compromising patient comfort or
causing damage to the joint
- Acute rheumatic fever may present as an acute monoarthritis and should be excluded, particularly in
Aboriginal and Torres Strait Islander people living in rural or remote settings, and other
populations who may be at high risk (eg Aboriginal and Torres Strait Islander people living in urban
settings, Maori and Pacific Islander people
- If the patient has a postoperative infection of a prosthetic shoulder joint please contact
infectious diseases for advice before starting treatment. Management is complex
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
References:
See section on Septic Arthritis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Empiric Septic Arthritis Treatment
For empirical therapy in a patient with non-severe penicillin
hypersensitivity and no MRSA risk factors, while awaiting the results of cultures and susceptibility
use:
Cefazolin 2 g (child 50 mg/kg up to 2 g) IV, 8-hourly
Suggested Antibiotic Duration for Septic Arthritis |
Patient age |
Intravenous (minimum) |
Total (intravenous + oral) |
neonate |
3 weeks |
3 weeks (all intravenously) |
child |
3 days |
3 weeks |
adult |
2 weeks |
4 weeks |
- The durations of therapy suggested in this table should be modified according to clinical response.
- These treatment durations do not apply to gonococcal arthritis, which should be treated for a total
of 7 days
- If the patient is clinically improving, an earlier switch to oral therapy may be possible, as long
as there is an appropriate oral antimicrobial available that is as effective as intravenous therapy
(eg ciprofloxacin, clindamycin). Conversely, some patients need a longer duration of intravenous
therapy than recommended in this table. Seek expert advice
- Take diagnostic samples before starting antibiotic therapy to exclude alternative or coexisting
diagnoses (such as an acute crystal arthropathy) and enable antibiotic therapy to be directed.
Appropriate diagnostic samples include blood for culture, and a joint aspirate for Gram stain,
culture and microscopy
- Joint aspiration should be performed by experienced clinicians, using an aseptic technique. When
performing diagnostic aspiration, aspirating the bulk of the effusion can offer therapeutic
benefits. Aspiration should be as complete as possible without compromising patient comfort or
causing damage to the joint
- Acute rheumatic fever may present as an acute monoarthritis and should be excluded, particularly in
Aboriginal and Torres Strait Islander people living in rural or remote settings, and other
populations who may be at high risk (eg Aboriginal and Torres Strait Islander people living in urban
settings, Maori and Pacific Islander people
- If the patient has a postoperative infection of a prosthetic shoulder joint please contact
infectious diseases for advice before starting treatment. Management is complex
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
References:
See section on Septic Arthritis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Empiric Septic Arthritis Treatment
For empirical therapy in a patient with either severe penicillin allergy
and/or a patient with MRSA risk factors, while awaiting the results of cultures and susceptibility use:
Suggested Antibiotic Duration for Septic Arthritis |
Patient age |
Intravenous (minimum) |
Total (intravenous + oral) |
neonate |
3 weeks |
3 weeks (all intravenously) |
child |
3 days |
3 weeks |
adult |
2 weeks |
4 weeks |
Code for vancomycin is:
2cac
This code is valid for TWO days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past 48 hours.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Take diagnostic samples before starting antibiotic therapy to exclude alternative or coexisting
diagnoses (such as an acute crystal arthropathy) and enable antibiotic therapy to be directed.
Appropriate diagnostic samples include blood for culture, and a joint aspirate for Gram stain,
culture and microscopy
- Joint aspiration should be performed by experienced clinicians, using an aseptic technique. When
performing diagnostic aspiration, aspirating the bulk of the effusion can offer therapeutic
benefits. Aspiration should be as complete as possible without compromising patient comfort or
causing damage to the joint
- Acute rheumatic fever may present as an acute monoarthritis and should be excluded, particularly in
Aboriginal and Torres Strait Islander people living in rural or remote settings, and other
populations who may be at high risk (eg Aboriginal and Torres Strait Islander people living in urban
settings, Maori and Pacific Islander people
- If the patient has a postoperative infection of a prosthetic shoulder joint please contact
infectious diseases for advice before starting treatment. Management is complex
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous
heritage, previous MRSA colonisation and line associated infection
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on Septic Arthritis - Antibiotic Expert Groups. Therapeutic
guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
Does the patient have a penicillin allergy?
(See below for details on penicillin allergy severity)
History of penicillin allergy or adverse reaction
No penicillin allergy
- This includes non-severe reactions such as nausea and limited diarrhoea
- Such reactions are frequently not replicable or generalizable to the whole class. It is safe to prescribe penicillin class antibiotics (with the patient’s knowledge), and if required, use strategies for symptom control such as metoclopramide
Non-severe immediate or delayed penicillin hypersensitivity
- This includes non-severe reactions such as isolated rash
- There is only a 2-3% chance of cephalosporin allergy in a patient with a previous IgE mediated allergy to penicillin, and probably even less for other types of allergies. In most cases it is safe to administer a cephalosporin to a patient who has had a non-life threatening reaction to penicillin
Severe immediate or delayed penicillin hypersensitivity
- This includes anaphylaxis (see below) BUT DOES NOT INCLUDE other life-threatening reactions such as Stevens-Johnson Syndrome (SJS), Toxic epidermal necrolysis (TEN), Drug reaction with eosinophilia and systemic symptoms (DRESS) or interstitial nephritis. If your patient has a history of these, contact infectious diseases for advice
Penicillin anaphylaxis is highly likely if any ONE of the following is fulfilled:
1. Acute onset of an illness (minutes to several hours) involving the skin, mucosal tissue, or both (eg, generalised hives, pruritus or flushing, swollen lips-tongue-uvula) and at least one of:
- Respiratory compromise (eg, dyspnea, wheeze/bronchospasm, stridor, reduced peak expiratory flow, hypoxemia)
OR
- Reduced blood pressure (BP) or associated symptoms and signs of end-organ malperfusion (eg, hypotonia [collapse] syncope, incontinence)
OR
2. TWO OR MORE OF THE FOLLOWING that occur rapidly after exposure to penicillin for that patient (within minutes to several hours):
- Involvement of the skin-mucosal tissue (eg, generalized hives, itch-flush, swollen lips-tongue-uvula)
- Respiratory compromise (eg, dyspnea, wheeze-bronchospasm, stridor, reduced peak expiratory flow, hypoxemia)
- Reduced BP or associated symptoms (eg, hypotonia [collapse], syncope, incontinence)
- Persistent gastrointestinal symptoms and signs (eg, crampy abdominal pain, vomiting)
OR
3. Reduced BP after exposure to penicillin in a patient with known penicillin allergy (within minutes to several hours)
- Reduced BP in adults is defined as a systolic BP of less than 90 mmHg or greater than 30 percent decrease from that person's baseline
- In infants and children, reduced BP is defined as low systolic BP (age-specific) or greater than 30 percent decrease in systolic BP
- i.e. Less than 70 mmHg from 1 month up to 1 year
- Less than (70 mmHg + [2 x age]) from 1 to 10 years
- Less than 90 mmHg from 11 to 17 years
Septic Bursitis
Does the patient have any systemic symptoms?
Septic Bursitis
Does the patient have any systemic symptoms?
Septic Bursitis
Does the patient have any systemic symptoms?
Septic Bursitis
Does the patient have any systemic symptoms?
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
Is methicillin-resistant Staphylococcus aureus (MRSA) infection suspected or is the patient at increased risk of MRSA?
- Risk factors for MRSA infection include: residence in a jail or detention centre, indigenous heritage, previous MRSA colonisation and line associated infection
- Patients from the Kimberley, Pilbara, Mid West, Gascoyne and Goldfields-Esperance health regions potentially have higher rates of MRSA carriage
Septic Bursitis
For a patient who is displaying systemic symptoms of infection, and at risk of MRSA infection give:
Code for vancomycin is:
2bur
This code is valid for TWO days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past 48 hours.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- If clinical improvement is delayed, repeated aspiration, catheter drainage or surgical excision may be required. When the patient is clinically improving (usually 3 to 7 days), switch to oral therapy as for septic bursitis without systemic symptoms and continue until the resolution of symptoms (usually 2 weeks)
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with no penicillin allergy, who is displaying systemic symptoms of infection, not at risk of MRSA infection give:
Flucloxacillin 2 g (child: 50 mg/kg up to 2 g) intravenously, 6-hourly
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- If clinical improvement is delayed, repeated aspiration, catheter drainage or surgical excision may be required. When the patient is clinically improving (usually 3 to 7 days), switch to oral therapy as for septic bursitis without systemic symptoms and continue until the resolution of symptoms (usually 2 weeks)
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient who is not displaying systemic symptoms of infection, at risk of MRSA infection give:
Doxycycline orally, 12-hourly
adult: |
100 mg |
child 8 years or older and less than 26 kg:
|
50 mg |
child 8 years or older and 26 to 35 kg: |
75 mg |
child 8 years or older and more than 35 kg: |
100 mg |
OR
Trimethoprim+sulfamethoxazole 320+1600 mg (child 1 month or older: 8+40 mg/kg up to 320+1600 mg) orally, 12-hourly
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- Continue treatment until infection has clinically resolved (usually 2 weeks). If infection is not improving after 48 hours of oral therapy, start intravenous therapy as for septic bursitis with systemic symptoms, and consider repeated aspiration or catheter drainage
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with no penicillin allergy, who is not displaying systemic symptoms of infection, not at risk of MRSA infection give:
Flucloxacillin 1 g (child: 25 mg/kg up to 1 g) orally, 6-hourly
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- Continue treatment until infection has clinically resolved (usually 2 weeks). If infection is not improving after 48 hours of oral therapy, start intravenous therapy as for septic bursitis with systemic symptoms, and consider repeated aspiration or catheter drainage
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with non-severe penicillin allergy, who is displaying systemic symptoms of infection, not at risk of MRSA infection give:
Cefazolin 2 g (child: 50 mg/kg up to 2 g) intravenously, 8-hourly.
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- If clinical improvement is delayed, repeated aspiration, catheter drainage or surgical excision may be required. When the patient is clinically improving (usually 3 to 7 days), switch to oral therapy as for septic bursitis without systemic symptoms and continue until the resolution of symptoms (usually 2 weeks)
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with no penicillin allergy, who is not displaying systemic symptoms of infection, not at risk of MRSA infection give:
Cefalexin 1 g (child: 25 mg/kg up to 1 g) orally, 6-hourly.
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- Continue treatment until infection has clinically resolved (usually 2 weeks). If infection is not improving after 48 hours of oral therapy, start intravenous therapy as for septic bursitis with systemic symptoms, and consider repeated aspiration or catheter drainage
- It is safe to use cefalexin in patients who had a delayed nonsevere reaction to a penicillin in the distant past. It is also safe to use cefalexin in patients who have had a delayed nonsevere reaction recently, unless the reaction involved amoxicillin or ampicillin, because cross-reactivity between these drugs is possible. For patients who have had a recent delayed nonsevere reaction to amoxicillin or ampicillin, use the treatment recommended for patients with immediate (nonsevere or severe) or delayed severe hypersensitivity
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with severe penicillin allergy, who is displaying systemic symptoms of infection, and at risk of MRSA infection give:
OR
Clindamycin 600 mg (child: 15 mg/kg up to 600 mg) intravenously, 8-hourly
Code for vancomycin or IV clindamycin is:
2bur
This code is valid for TWO days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past 48 hours.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- If clinical improvement is delayed, repeated aspiration, catheter drainage or surgical excision may be required. When the patient is clinically improving (usually 3 to 7 days), switch to oral therapy as for septic bursitis without systemic symptoms and continue until the resolution of symptoms (usually 2 weeks)
Vancomycin Dosing in Paediatrics
Age |
Starting Dose (use actual body weight) |
Dosing frequency |
Timing of first trough concentration |
Neonates < 30 weeks postmenstrual age (NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
18-hourly |
Before the second dose |
postnatal age 14 days or older |
15 mg/kg |
12-hourly |
Before the third dose |
Neonates 30 to 36 weeks postmenstrual age
(NB1) |
postnatal age 0 to 14 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 15 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 37 to 44 weeks postmenstrual age (NB1) |
postnatal age 0 to 7 days |
15 mg/kg |
12-hourly |
Before the third dose |
postnatal age 8 days or older |
15 mg/kg |
8-hourly |
Before the fourth dose |
Neonates 45 weeks postmenstrual age or older (NB1) |
15 mg/kg |
6-hourly |
Before the fifth dose |
Infants and children (NB2) |
15 mg/kg up to 750 mg |
6-hourly |
Before the fifth dose |
- NB1- Postmenstrual age is the time elapsed between the first day of the last menstrual
period and birth (gestational age) plus the time elapsed after birth (postnatal age)
- NB2- The Therapeutic Guidelines gives an alternative 12-hourly dosing in this group;
however local NT data support using 6-hourly dosing in all children up to 12 years
Vancomycin Dosing in Adults
Actual body weight (kg) |
CrClr < 20 mL/min |
CrClr 20-40 mL/min |
CrClr 40-60 mL/min |
CrClr > 60 mL/min |
Administer over(1) |
< 40 |
15 to 20 mg/kg 48 to 72 hly |
15 to 20 mg/kg 24-hly |
15 to 20 mg/kg daily, in 1 or 2 divided doses |
15 to 20 mg/kg 12-hly |
--- |
40-49 |
750 mg 48 to 72 hly |
750 mg 24 hly |
750 mg daily, in 1 or 2 divided doses |
750 mg 12 hly |
1 hr 15 min |
50-64 |
1000 mg 48 hly |
1000 mg 24 hly |
1000 mg daily, in 1 or 2 divided doses |
1000 mg 12 hly |
1 hr 40 min |
65-78 |
1250 mg 48 hly |
1250 mg 24 hly |
1250 mg daily, in 1 or 2 divided doses |
1250 mg 12 hly |
2 hrs 5 min |
79-92 |
1500 mg 48 hly |
1500 mg 24 hly |
1500 mg daily, in 1 or 2 divided doses |
1500 mg 12 hly |
2 hrs 30 min |
93-107 |
1750 mg 48 hly |
1750 mg 24 hly |
1750 mg daily, in 1 or 2 divided doses |
1750 mg 12 hly |
3 hrs |
> 108 |
2000 mg 48 hly |
2000 mg 24 hly |
2000 mg daily, in 1 or 2 divided doses |
2000 mg 12 hly |
3 hrs 30 min |
Timing of 1st trough level(2) |
48 hrs after the 1st dose(3) |
Before the 3rd dose |
48 hrs after the 1st dose(3) |
Before the 4th dose |
--- |
- Vancomycin should be administered at a maximum rate of 10 mg/min to avoid Red Person Syndrome
- "Trough" levels are taken within 60 minutes of the next dose. If a loading dose is given then it is
considered the first dose
- In patients with CrClr < 20 mL/min, the clinical context (e.g haemodialysis) determines whether
the next dose is given before the trough concentration is available or withheld until the result is
known
- Please contact infectious diseases within 48 hours of initiating therapy with vancomycin
- Please contact infectious diseases for any patient with a body mass index [BMI] of 30 kg/m2 or more, dosing is complex in obese patients
- Watch baseline creatinine closely while treating a patient with vancomycin. An increase from
baseline creatinine will almost always result in an increase in vancomycin concentration as
vancomycin is 40-100% renally cleared. A sudden dramatic increase in creatinine should always prompt
an immediate vancomycin level prior to the next dose, witholding the next dose until the level is
available
- If a dose is missed or delayed within 48 hours of taking a level please contact pharmacy for
interpretation of trough levels as vancomycin will not have reached steady state
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.
Septic Bursitis
For a patient with severe penicillin allergy, who is not displaying systemic symptoms of infection, not at risk of MRSA infection give:
Clindamycin 450 mg (child: 10 mg/kg up to 450 mg) orally, 8-hourly
Code for oral clindamycin is:
7bur
This code is valid for SEVEN days only, starting from the first day of treatment for this
condition. Infectious diseases must be contacted if IV treatment is to continue past one week.
Please annotate this code on the medication chart and document when infectious diseases are to be
contacted in the patient notes.
- Bursitis is most commonly noninfective. Septic bursitis is usually caused by Staphylococcus aureus and often follows local trauma. The usual sites of infection are the prepatellar and olecranon bursae. When there are signs of infection, confirm the diagnosis by microscopic examination and culture of a bursal aspirate. If the joint is involved, see septic arthritis
- Continue treatment until infection has clinically resolved (usually 2 weeks). If infection is not improving after 48 hours of oral therapy, start intravenous therapy as for septic bursitis with systemic symptoms, and consider repeated aspiration or catheter drainage
References:
See section on post septic bursitis - Antibiotic Expert Groups. Therapeutic guidelines: antibiotic. Version 15. Melbourne: Therapeutic Guidelines Limited; 2019.