ALL suspected/ confirmed cases of endocarditis MUST be discussed with Microbiologists and Cardiologists and entered to the IE Care Pathway form. Discuss with Microbiologist at first opportunity in working hours and daytime during the weekend (within 24 hours of suspected diagnosis)
Microbiological specimens
Three sets of blood cultures need to be taken before initiating antibiotics. If antibiotics already started, blood culture must be collected before next dose of antibiotic. Must LABEL BC AS ENDOCARDITIS for prolonged incubation and endocarditis specific sensitivity testing and MIC determinations.
Serology for Coxiella and Bartonella if blood culture negative endocarditis.
Valve tissue at operation in sterile container without saline and inform the laboratory prior to delivery and deliver by hand to member of the senior laboratory staff for 16s rRNA PCR and other specialist molecular tests.
The below recommendations are for empiric therapy only. Targeted regimes will be provided by Consultant Microbiologist and Cardiologist.
Vancomycin plus Gentamicin may accentuate renal impairment.
Indolent presentation:
Initial “blind” therapy
Common Pathogen(s) Streptococcal spp
Antibiotic – 1st line Vancomycin IV (dosed as per trust vancomycin guideline)
Comment
Specific management MUST be based on organism isolated/ MIC.
Vancomycin target: predose 15 – 20mg/L Level
Discuss with Microbiologist at first opportunity in working hours and daytime during the weekend (within 24 hours of suspected diagnosis)
Initial “blind” therapy
Acute presentation
Common Pathogen(s) Staphylococcus aureus
1st Line
Vancomycin IV (dosed as per trust vancomycin guideline) plus
Comment
Discuss with Microbiologist ASAP.
Vancomycin target
Pre-dose 15-20mg/L level.
Discuss with Microbiologist at first opportunity in working hours and daytime during the weekend (within 24 hours of suspected diagnosis)
Initial “blind” therapy
Common Pathogen(s)
Staphylococcal spp
Antibiotic – 1st line
Vancomycin (dosed as per trust vancomycin guideline) plus
Rifampicin 600mg q12h PO plus Gentamicin as per gentamicin policy.
Discuss continuation of Gentamicin beyond 48 hours with Microbiology.
Comment
Specific management MUST be based on organism isolated/ MIC.
Vancomycin target
Pre-dose 15-20mg/L level.
ALL suspected/ confirmed cases of infected inplantable cardiac electronic devices MUST be discussed with Microbiologists and Cardiologists
Microbiology specimens
For early (<30 days) post implantation inflammation / uncomplicated superficial wound infection without fluctuance, discharge or dehiscence AND without systemic symptoms or signs of infection – address any obvious cause and take blood cultures. Wound should be reviewed by appropriate personnel (ideally implanting physician, if unavailable on-call cardiology registrar)
For generator pocket infection – If evidence of severe sepsis take 3 sets of blood cultures within 1h, then give antibiotics. If no evidence of sepsis withhold antibiotics and take three sets of blood cultures at different times >6h apart, organise echocardiography and urgent cardiology review with a view to prompt removal of entire system and temporary pacing if needed. Theatre samples during extraction – lead fragments (proximal and distal), lead vegetation, generator pocket tissue (-2sq.cm) and pus aspirated from generator pocket wound (swabs are least preferred samples)
The below recommendations are for empiric therapy only. Targeted regimes will be provided by Consultant Microbiologist and Cardiologist.
Early post implantation inflammation (<30days) and blood culture negative Uncomplicated generator pocket infection
Early post implantation inflammation (<30days and blood culture negative ) Duration 7-10days and review
Uncomplicated generator pocket infection – Duration 10-14days and review
Antibiotic – 1st line
Vancomycin IV as per vancomycin dosing guide
Oral option- Clindamycin 600mg PO q6h (discuss with microbiologist if Erythromycin or clindamycin resistant staphylococci isolated)
Comment
Specific management MUST be based on organism isolated/ MIC.
Device may be left in situ.
Implantable cardiac electronic device lead infection or related infective endocarditis
Common Pathogen(s)
Antibiotic – 1st line
Discuss with microbiologist and cardiologist
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