JOURNAL ARTICLE
REVIEW

Laboratory Diagnosis of Infective Endocarditis

Rachael M Liesman, Bobbi S Pritt, Joseph J Maleszewski, Robin Patel
Journal of Clinical Microbiology 2017, 55 (9): 2599-2608
28659319
Infective endocarditis is life-threatening; identification of the underlying etiology informs optimized individual patient management. Changing epidemiology, advances in blood culture techniques, and new diagnostics guide the application of laboratory testing for diagnosis of endocarditis. Blood cultures remain the standard test for microbial diagnosis, with directed serological testing (i.e., Q fever serology, Bartonella serology) in culture-negative cases. Histopathology and molecular diagnostics (e.g., 16S rRNA gene PCR/sequencing, Tropheryma whipplei PCR) may be applied to resected valves to aid in diagnosis. Herein, we summarize recent knowledge in this area and propose a microbiologic and pathological algorithm for endocarditis diagnosis.

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