MORPHOLOGICAL AND MORPHOMETRICAL ANALYSIS OF MITRAL VALVE ANNULUS OF HEART IN HUMAN ADULT CADAVERS

Abstract

Background: Mitral / Left Atrio ventricular Orifice is almost vertical in diastole and 45 0 to the sagittal plane with slight forward tilt. Mitral annulus consists of a collagenous ring where the lamina fibrosa of the valve leaflets are attached. There is variation in the length of annular circumference in different studies due to racial difference. According to previous reports mitral valve mean circumference is 9.0 cm in males; 7.2cm in females. The present study is aimed at studying the Morphology and morphometry of mitral valve annulus by dissection method in South Indian adult population.