ニシムラ ヨウスケ   Nishimura Yosuke
  西村 陽介
   所属   医学部医学科  臨床医学系 心臓血管外科学
   職種   教授
論文種別 その他
言語種別 英語
査読の有無 査読あり
表題 Morphometric study of the human mitral annulus: guide for mitral valve surgery.
掲載誌名 正式名:Asian cardiovascular & thoracic annals
略  称:Asian Cardiovasc Thorac Ann
ISSNコード:18165370/02184923
掲載区分国外
巻・号・頁 22(7),787-93頁
著者・共著者 Eto Masataka, Morita Shigeki, Nakashima Yutaka, Nishimura Yousuke, Tominaga Ryuji
発行年月 2014/09
概要 BACKGROUND:during mitral valve surgery, it is important for surgeons to understand the anatomy of the mitral valve annulus to prevent surgical complications. This study aimed to perform morphometry of the mitral annulus to facilitate secure suturing during ring annuloplasty or replacement of the mitral valve.METHODS:an anatomical study was carried out on 7 human hearts. We divided the mitral valve annulus into sections containing 8 different points. It was noted that the annulus was a complex structure which has fibrous continuity with the mitral leaflets, and with or without the aortic annulus.RESULTS:there was always a segment of the annular fibrous structure which was facing directly toward the left ventricular cavity. The length of the segment ranged from 1.0 to 3.4 mm. In terms of the size of the annulus, there were large variations within the subject and among the subjects. The shortest distance between the mitral annulus and left circumflex coronary artery was at the anterolateral commissure, and the length was 3.3 mm.CONCLUSION:this study has improved understanding of the anatomy of the mitral annulus, which could help surgeons to avoid operative complications. Based on this study, several suggestions are made for placing sutures for mitral valve replacement and mitral ring annuloplasty.
DOI 10.1177/0218492313513596
PMID 24887907