期刊
ANNALS OF THORACIC SURGERY
卷 97, 期 2, 页码 492-498出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.athoracsur.2013.09.077
关键词
-
Background. Various rings are available to achieve more physiologic mitral valve repair from viewpoints of physiologic mitral annular structure or dynamics. We evaluated preoperative and postoperative mitral annular structures and dynamics. Methods. Thirty-six patients underwent mitral valve repair for degenerative mitral insufficiency. Carpentier-Edwards Physio II ring (semirigid [Edwards Life-sciences, Irvine, CA]), St. Jude Medical Rigid Saddle Ring (RSR [St. Jude Medical, St. Paul, MN]), and MEMO 3D ring (semirigid [Sorin SpA, Milan, Italy]) were implanted in 13, 12, and 11 patients, respectively. Intraoperative real-time three-dimensional transesophageal echocardiography was performed before and after repair. Results. The postoperative anteroposterior diameter reduction rate from end diastole to end systole was significantly (p < 0.0001) larger in MEMO (9.58% +/- 2.91%) than in Physio II (0.98% +/- 1.04%) and RSR (1.94% +/- 1.95%). There were no significant differences in the commissure-to-commissure diameter reduction rates among the groups: 0.81% +/- 1.98% for Physio II, 0.12% +/- 0.53% for RSR, and 0.51% +/- 1.98% for MEMO. The postoperative endsystolic annular height commissure width ratio was significantly (p < 0.0001) larger in both Physio II (17.9% +/- 3.0%) and RSR (18.5% +/- 1.6%) than in MEMO(13.6% +/- 3.0%). The postoperative annular height commissure width ratio increase rate from end diastole to end systole was significantly larger in MEMO (5.1% +/- 2.3%) than in Physio II (0.1% +/- 0.6%) and RSR (0.3% +/- 0.5%). Conclusions. Physio II and RSR could restore the physiologic three-dimensional annular shape, but the annular motion was diminished. Conversely, MEMO could preserve both the anteroposterior movement and folding dynamics, but no three-dimensional restoration of the mitral annulus was obtained. (C) 2014 by The Society of Thoracic Surgeons
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据