[Percutaneous mitral commissurotomy and left ventricular function in severe mitral stenosis]

ABSTRACT

The purpose of this study was to determine the immediate effect of percutaneous mitral commissurotomy [PMC] on left ventricular [LV] performance. We studied 30 patients with severe mitral stenosis undergoing successful PMC by cardiac catheterization and angiography before and 5 minutes after PMC. All patients were in sinus rhythm and no patient had hypertention or clinical coronary artery desease. We conclude that the left ventricular end-diastolic volume and the stroke volume increased significatively immediately after PMC because of and increase in LV filling after relieving the mitral mechanical obstruction