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Abstract
Left ventricular function often deteriorates after conventional MVR for Correction of MR. It has been postulated that disruption of the mitral valve Apparatus at operation is a major mechanism of postoperative dysfunction.
The aim of this study was to evaluate the effect of chordal preservation either partially or totally on the left ventricular function early and late postoperatively comparing it to conventional MVR.
In the present study, preoperative, early and late postoperative systolic function was evaluated in 60 patients with chronic severe MR. 20 patients underwent conventional MVR (group I), 20 patients underwent MVR with post leaflet preservation (group II) and 20 patients underwent MVR with total chordal preservation (group III).
The left ventricular function was evaluated utilizing echocardiography to measure dimensions, volumes, and ejection fraction % pre and postoperatively.
Preoperatively, the 3 groups were comparable as regard clinical diagnosis age, sex, and body .surface area and ehoeardiographic data.