Tricuspid Pouch can Cause Systemic Embolization in Adulthood

Akira Takaki; Hiroshi Ogawa; Takatoshi Wakeyama; Takahiro Iwami; Masayuki Kimura; Hitoshi Uchinoumi; Shintarou Akashi; Susumu Matsuda; Yousuke Miyazaki; Masunori Matsuzaki; Haruhiko Okada; Masahiko Nishida; Masanori Murakami

doi:10.1253/circj.70.631

Case Report

Tricuspid Pouch can Cause Systemic Embolization in Adulthood

Akira Takaki, Hiroshi Ogawa, Takatoshi Wakeyama, Takahiro Iwami, Masayuki Kimura, Hitoshi Uchinoumi, Shintarou Akashi, Susumu Matsuda, Yousuke Miyazaki, Masunori Matsuzaki, Haruhiko Okada, Masahiko Nishida, Masanori Murakami

Author information

Akira Takaki
Division of Cardiology, Tokuyama Central Hospital
Hiroshi Ogawa
Division of Cardiology, Tokuyama Central Hospital
Takatoshi Wakeyama
Division of Cardiology, Tokuyama Central Hospital
Takahiro Iwami
Division of Cardiology, Tokuyama Central Hospital
Masayuki Kimura
Division of Cardiology, Tokuyama Central Hospital
Hitoshi Uchinoumi
Division of Cardiology, Tokuyama Central Hospital
Shintarou Akashi
Division of Cardiology, Tokuyama Central Hospital
Susumu Matsuda
Division of Cardiology, Tokuyama Central Hospital
Yousuke Miyazaki
Division of Cardiology, Tokuyama Central Hospital
Masunori Matsuzaki
Division of Cardiovascular Medicine, Department of Medical Bioregulation, Yamaguchi University School of Medicine
Haruhiko Okada
Division of Cardiovascular Surgery, Tokuyama Central Hospital
Masahiko Nishida
Division of Cardiovascular Surgery, Tokuyama Central Hospital
Masanori Murakami
Division of Cardiovascular Surgery, Tokuyama Central Hospital

Keywords: Aneurysm, Cerebral infarction, Embolism, Membranous septum, Tricuspid pouch

JOURNAL FREE ACCESS

2006 Volume 70 Issue 5 Pages 631-633

DOI https://doi.org/10.1253/circj.70.631

Details

Abstract

A 63-year-old-man with significant left hemiplegia was admitted to hospital. He had experienced a transient cerebral ischemic attack 10 years ago. Computed tomography revealed hypodensity along the right lateral ventricle, which corresponded to the left paralysis. Echocardiography and left ventricular angiography revealed an aneurysm of the membranous septum (AMS) without a ventricular septal defect (VSD). Therefore, the embolism was thought to be of cardiac origin, but surgery revealed that it was not caused by AMS. The aneurysm was created when the septal leaflet of tricupid valve formed a giant capsule during the process of natural closure of the VSD. It was a large pouch, 2.0 cm in diameter, adjacent to the septal leaflet. Anomalies of the tricuspid valve, including pouches, can resemble AMS. (Circ J 2006; 70: 631 - 633)

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