Treatment of Infective Endocarditis with History of Penicillin Allergy
Managing infective endocarditis in a patient with a penicillin allergy requires a specific antibiotic strategy that avoids penicillin-class agents while still achieving effective bactericidal coverage. This protocol covers that scenario for community-acquired and late prosthetic valve presentations.
Clinical scenario
Community-acquired native valve infective endocarditis (NVE), or late prosthetic valve infective endocarditis (PVE, ≥12 months post-surgery), in a patient with a documented penicillin allergy. The allergy contraindicates standard penicillin-based regimens and necessitates a structured alternative approach.
Treatment approach
In this penicillin-allergic population, combination antibiotic therapy — involving a cephalosporin or glycopeptide agent used together with an aminoglycoside — may be considered. The complete regimen, including specific agents, doses, and clinical decision steps, is available in the full protocol.
Full dosing, sequencing, and alternative options are detailed in the structured protocol below.
References
In patients with community-acquired NVE or late PVE (≥12 months post-surgery) who are allergic to penicillin, cefazolin, or vancomycin in combination with gentamicin may be considered using the following doses:
DOI: 10.1093/eurheartj/ehad193
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