برون ده بطن چپ در بيماران با تنگي دريچه ميترال

Title

LEFT VENTRICULAR EJECTION FRACTION IN PATIENTS WITH MITRAL VALVE STENOSIS

English Abstract

Introduction: Rheumatic fever and following mitral stenosis (MS) is one of the relatively common diseases in developing countries , which can cause relative or complete distability in patients. In addition to the involvement of cardiac valves, rheumatic fever can directly involve the cardiac myocardium and decrease left ventricular ejection fraction (LVEF) . Objectives: The purpose of this study was to evaluate the rate of reduction of LVEF in patients with MS. Materials and Methods: This survey was done in descriptive - analytic method in two years in patients with MS and after diagnosis of the disease with clinical examinations and echocardiography, the gathered informations were inserted in especial forms and then analyzed by statistical methods like SPSS soft ware. Results: 165 patients with MS were studied in two years. 110 patients (66.67%) were female and 55 patients (33.33%) were male. 71 patients had sinus rhythm (43.03%) and 94 (56.97%)patients had AF rhythm. 35 % of patients (58 of 165 cases) had reduced LVEF which 30 patients of them were female (26% of female group) and 28 patients were male (52% of male group). Also 84.48% of patients with reduced LVEF had AF rhythm and only 15.52% of them had sinus rhythm. Conclusions: In this study, 35% of patients with MS had reduced LVEF and reduction of LVEF had significant relation with gender and cardiac rhythm. There was obvious increased rate of LVEF reduction in male gender and patients with AF rhythm but there was no significant relation between age of patients and LVEF reduction in this study.

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