What question did this study set out to answer?

To report a rare case of ruptured mitral valve aneurysm due to Gemella morbillorum endocarditis in a patient with bicuspid aortic valve.

April 25, 2026Surgical Case Reports0 citationsOpen Access

Emergency Double Valve Replacement for Ruptured Mitral Valve Aneurysm and Annular Abscess Caused by Gemella Morbillorum Endocarditis in a Patient with Bicuspid Aortic Valve: A Case Report

YOYoshihiko Onishi TATakayuki Abe YHYuki Hirai

Key Points

To report a rare case of ruptured mitral valve aneurysm due to Gemella morbillorum endocarditis in a patient with bicuspid aortic valve.
Emergency double valve replacement performed
Patient diagnosed with ruptured mitral valve aneurysm and aortic annular abscess due to G. morbillorum
Bicuspid aortic valve confirmed as underlying condition
Surgery successfully managed the severe complications from endocarditis
Patient stabilized post-operation without immediate complications

Abstract

INTRODUCTION: Mitral valve aneurysm (MVA) is a rare but potentially fatal complication of infective endocarditis (IE), often associated with aortic valve involvement. Gemella morbillorum, a commensal oral bacterium, is an uncommon cause of IE. We report a rare case of MVA rupture with an aortic annular abscess caused by G. morbillorum IE in a patient with bicuspid aortic valve (BAV), successfully managed with emergency valve replacement.

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Cite This Study

Onishi et al. (Thu,) studied this question.

synapsesocial.com/papers/69ec598788ba6daa22dab4d9 https://doi.org/https://doi.org/10.70352/scrj.cr.25-0659

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