Abiotrophia Defectiva as a Rare Cause of Mitral Valve Infective Endocarditis With Mesenteric Arterial Branch Pseudoaneurysm, Splenic Infarction, and Renal Infarction: A Case Report

Frontiers in Medicine

article

Jiayu Li¹  Li Zhou¹  Xuhe Gong¹  Yuan Wang¹  Daokuo Yao¹  Hongwei Li¹ 

[1] Department of Cardiology, Beijing Friendship Hospital, Capital Medical University;Department of Internal Medical, Medical Health Center, Beijing Friendship Hospital, Capital Medical University;Beijing Key Laboratory of Metabolic Disorder Related Cardiovascular Disease

关键词: Abiotrophia defectiva;    infective endocarditis;    mitral valve replacement;    pseudoaneurysm;    case report;   

DOI  :  10.3389/fmed.2022.780828

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Introduction Abiotrophia defectiva ( A. defectiva ) is a rare species leading to infective endocarditis (IE) with a poor prognosis. We describe a previously healthy patient with mitral valve infective endocarditis caused by A. defectiva . Case report A young man was admitted with intermittent fever. Echocardiography confirmed vegetation on the mitral valve with evidence of valve perforation and severe mitral regurgitation. Three sets of blood cultures became positive for A. defectiva . As he presented with manifestations of mesenteric arterial branch pseudoaneurysm, splenic and renal infarction, mitral valve replacement, and embolization of superior mesenteric aneurysm were operated during 8 weeks' targeted antibiotic therapy. Conclusion This case study emphasizes the importance of considering A. defectiva as a rare but important cause of IE and of performing blood culture to make its accurate diagnosis and timely anti-infective treatment. Early surgical management and active prevention of complications have been associated with a favorable prognosis.

【 授权许可】

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