Miniature Erupting Volcano-Shaped Mitral Valve Aneurysm Secondary to Streptococcus agalactiae ST1656 Endocarditis: A Case Report

Frontiers in Cardiovascular Medicine

Hiroyuki Yamamoto¹  Hiroyuki Yamada²  Yoshihiko Ikeda³  Takahiro Maeda⁴  Takashi Takahashi⁴  Mieko Goto⁴ 

[1] Department of Cardiovascular Medicine, Narita-Tomisato Tokushukai Hospital, Chiba, Japan;Department of Cardiovascular Surgery, Narita-Tomisato Tokushukai Hospital, Chiba, Japan;Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Japan;Laboratory of Infectious Diseases, Graduate School of Infection Control Sciences and Omura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan;

关键词: GBS IE;    MVA;    MR;    diabetes;    TEE;    ST1656;   

DOI  :  10.3389/fcvm.2021.728792

来源: DOAJ

【 摘 要 】

Mitral valve aneurysm (MVA) is a rare but life-threatening valvular pathologic entity most commonly associated with infective endocarditis (IE) of the aortic valve (AV). We describe a diabetic patient with ruptured anterior MVA secondary to capsular genotype V Streptococcus agalactiae (GBS) harboring novel ST1656 IE without AV involvement. Our patient presented with manifestations of various serious systemic and intracardiac complications, requiring early surgery, but ultimately died from non-cardiogenic causes. This case emphasizes the importance of treating MVA as a dangerous sequela of IE, of performing transesophageal echocardiography to make its accurate diagnosis and institute early surgical intervention, and of considering GBS as a rare but important causative agent of IE in elderly patients with comorbidities.

【 授权许可】

Unknown