What is the treatment for penicillin-sensitive S viridans prosthetic valve endocarditis (PVE)?

Updated: Jan 03, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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Penicillin-sensitive S viridans PVE should be treated with 2 weeks of penicillin G or ceftriaxone combined with gentamicin, followed by 4 weeks of penicillin G or ceftriaxone.

If the S viridans PVE is caused by an organism with a penicillin MIC of 0.2 mcg/mL or more, penicillin G or ceftriaxone combined with gentamicin combination therapy should be administered for 4-6 weeks. If the combination therapy is administered for only 4 weeks, penicillin G or ceftriaxone should be continued for an additional 2 weeks. Vancomycin is substituted for penicillin or ceftriaxone if the patient has a history of severe, immediate penicillin hypersensitivity, such as urticaria, anaphylaxis, or angioedema.

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