Rare Proteus mirabilis Aortic Valve Infective Endocarditis without a Urinary Tract Infection

Proteus mirabilis infective endocarditis is a rare disease with only 17 reported cases. It is typically associated with urinary tract infections (UTIs), staghorn calculi, and/or asymptomatic bacteriuria. We present a case of a 73-year-old male who presented with positive blood cultures for Proteus m...

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Bibliographic Details
Main Authors: Sarah Gorn, Nicholas Talley, Austin Mitchell, Alejandro Pineda
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Infectious Diseases
Online Access:http://dx.doi.org/10.1155/2022/7569148
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Summary:Proteus mirabilis infective endocarditis is a rare disease with only 17 reported cases. It is typically associated with urinary tract infections (UTIs), staghorn calculi, and/or asymptomatic bacteriuria. We present a case of a 73-year-old male who presented with positive blood cultures for Proteus mirabilis but with a negative urinalysis and urine culture. He presented with acute renal failure and required hemodialysis. TTE was remarkable for a 30% ejection fraction, and no vegetations were visualized. TEE demonstrated a small vegetation on the left aortic valve. The initial urine culture remained negative throughout his hospitalization. He was treated with IV antibiotics and discharged without hemodialysis.
ISSN:2090-6633