EARLY EVIDENCE OF BENEFICIAL-EFFECTS OF CHORDAL PRESERVATION IN MITRAL-VALVE REPLACEMENT ON LEFT-VENTRICULAR DIMENSIONS

被引：11

作者：

GHOSH, PK ^{[1
]}

SHAH, S ^{[1
]}

DAS, A ^{[1
]}

CHANDRA, M ^{[1
]}

AGARWAL, SK ^{[1
]}

MITTAL, PK ^{[1
]}

机构：

[1] SANJAY GANDHI POSTGRAD INST MED SCI,DEPT CARDIOVASC & THORAC SURG,LUCKNOW 226001,INDIA

来源：

EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY | 1992年 / 6卷 / 12期

关键词：

MITRAL VALVE REPLACEMENT; CHORDAL PRESERVATION; LEFT VENTRICULAR DIMENSIONS; ECHOCARDIOGRAPHY;

D O I：

10.1016/1010-7940(92)90190-9

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Earlier authors have shown the improved left ventricular (LV) function after chordae-preserving mitral valve replacement (MVR) in follow-up studies. Seventy-nine consecutive patients undergoing MVR were studied preoperatively and pre-discharge with M-mode and two-dimensional Color Doppler echocardiography for early LV morphometric changes. Conventional MVR was performed in 42 patients (Group 1) and the posterior leaflet-chordae-papillary muscle complex was preserved in 37 patients (Group 2). Both cohorts were similar in age, sex, preoperative NYHA class and valve pathology. Four St. Jude bioprostheses, 9 Medtronic and 66 Sorin prostheses were implanted. The intraoperative and perioperative management protocol was uniform for both groups.The median left atrial dimension in both groups decreased to better physiological levels (53 to 46 mm in group 1, 52.5 to 46 mm in group 2). The median LV enddiastolic dimension increased from 47 to 48 mm in group 1 while it decreased from 56.5 to 49 mm in group 2. The median LV endsystolic dimension remained unchanged in group 1 but decreased in group 2 (37.6 to 36 mm). Echocardiographic documentation of such early changes in the LV dimensions after modified MVR indicates that the beneficial effects of chordal preservation become evident early in the postoperative period and may explain the improved perioperative LV function after modified MVR compared to conventional MVR.

引用

页码：655 / 659

页数：5

共 43 条

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