Evaluation of Mitral Valve Replacement on Beating Heart in Patients with Chronic Severe Mitral Regurge and Left Ventricular Dysfunction; Safety and Potential Benifit

Abstract

There was significantly longer mechanical ventilation time and ICU stay in cold group I compared to beating group II. Both the early (in hospital) and late (6 months) postoperative echocardiography showed a similar improvement in the two groups regarding left ventricular end diastolic diameter (LVEDD) and left ventricular end systolic diameter (LVESD) but a significant difference in left ventricular function in favor of the beating technique as the left ventricular ejection fraction (LVEF) and left ventricular fraction shortening (LVFS) were better in beating group II than cold group I. The significant differences in EF and FS which was in favor of beating group II over cold crystalloid cardioplegic technique in early and late postoperative echocardiographic results, explains the generally better course of patients of this group in hospital and during the early follow up period, this together with the absence of related perioperative mortality and the major complications suggests that it is safe and beneficial to LV function.

Keywords: LV end-systolic volume - ejection fraction- LV end-systolic volume-