Mitral ring annuloplasty: An incomplete correction of functional mitral regurgitation associated with left ventricular remodeling

被引:25
作者
Lachmann J. [1 ]
Shirani J. [1 ]
Plestis K.A. [1 ]
Frater R.W.M. [1 ]
LeJemtel T.H. [1 ]
机构
[1] Albert Einstein College of Medicine, Division of Cardiology, Forchheimer Building, Bronx, NY 10461
关键词
Mitral Valve; Left Ventricular Ejection Fraction; Chronic Heart Failure; Mitral Regurgitation; Coronary Flow Reserve;
D O I
10.1007/s11886-001-0029-6
中图分类号
学科分类号
摘要
Functional mitral regurgitation (FMR) occurs commonly in patients undergoing left ventricular (LV) remodeling. It is ubiquitous in patients referred to cardiac transplantation for LV systolic dysfunction and predicts a poor prognosis. The LV remodeling that is responsible for FMR is well understood and involves regional LV dysfunction Mitral annular dilatation is present in patients with idiopathic dilated cardiomyopathy but most often absent in patients with ischemic cardiomyopathy. Nonrandomized observations indicate that implantation of a mitral undersized flexible mitral ring reduces the amount of FMR, reverses LV remodeling, and improves symptoms in patients with endstage cardiomyopathy and severe FMR. Whether a surgical procedure that does not correct the major LV alterations leading to FMR can have long-lasting effects on the amount of FMR and the reversal of LV remodeling remains to be demonstrated in randomized trials. © 2001 by Current Science Inc.
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收藏
页码:241 / 246
页数:5
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