Open AccessProteus mirabilis endocarditis
Author(s) -
Inês Albuquerque,
Ana Rita Silva,
Marta Carreira,
Fernando Friões
Publication year - 2019
Publication title -
bmj case reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.231
H-Index - 26
ISSN - 1757-790X
DOI - 10.1136/bcr-2019-230575
Subject(s) - medicine , transesophageal echocardiogram , endocarditis , infective endocarditis , transthoracic echocardiogram , aortic valve , aortic valve replacement , proteus mirabilis , cardiology , valve replacement , mitral valve replacement , surgery , mitral valve , radiology , stenosis , staphylococcus aureus , biology , bacteria , genetics
A 62-year-old man was admitted to the emergency department due to fever and acute heart failure. A transthoracic echocardiogram revealed severe aortic valve obstruction. He was an hepatic transplant recipient and was medicated with everolimus. He underwent mitral and aortic valve replacement with prosthetic valves 4 years ago. Due to his medical background, therapy and clinical presentation, empirical therapy for infective endocarditis was started. Transoesophageal echocardiogram showed severe aortic valve regurgitation but no other findings suggestive of endocarditis. Computed tomography (CT) revealed pulmonary infiltrates compatible with infection and no evidence of septic embolisation. Multiple sets of blood cultures were negative. Proteus mirabilis was isolated in bronchial lavage and antibiotic therapy was adjusted. The patient underwent aortic valve replacement, with no macroscopic findings suggestive of endocarditis. P. mirabilis was isolated in the surgically removed valve. Dual antibiotic therapy was successfully administered for 6 weeks.