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A Case of Infective Endocarditis Associated with Dissections in Interventricular Septum and Aortic Valve Leaflet Mitsunori Ootsubo 1 , Hisao Onozuka 1 , Kazuyuki Noriyasu 1 , Satoshi Yamada 1 , Hiroya Takatsuji 1 , Tomohide Ono 1 , Jun-ichi Teranishi 1 , Taisei Mikami 1 , Akira Kitabatake 1 1Department of Cardiovascular Medicine, Hokkaido University School of Medicine Keyword: 心室中隔解離 , 大動脈弁解離 , 感染性心内膜炎 , dissection of interventricular septum , dissection of aortic valve leaflet , infective endocarditis pp.305-308
Published Date 1996/3/15
DOI https://doi.org/10.11477/mf.1404901220
  • Abstract
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We report a very rare case of infective endocarditis with dissections both in the interventricular septum and in an aortic valve leaflet.

A swinging membranous structure was detected in the left ventricular outflow tract by transthoracic and transesophageal echocardiography, and it was thought to he caused by a dissection of the interventricular septum. Doppler technique revealed a significant systolic pressure gradient across the abnormal structure with an aortic regurgitant jet. Aortography showed aortic regurgitation, and the interventricular dissected zone was enhanced at the diastolic phase. There was a jet of contrast from the dissected zone to the left ventricule.

We detected the extension of the dissected area by echocardiography after the hospitalization, and the patient was operated on. Dissections both in the inter-ventricular septum and the aortic valve leaflet were observed at the operation and the pathological exami-nation was compatible with healed infective endocar-ditis.


Copyright © 1996, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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