Dimensions Of Mitral Valve Of Normal Human Hearts In Pakistani Subjects

Abstract

Mitral valve has been extensively studied in the west but no data is available about its dimensions in Pakistan population. We have studied 29 human hearts of healthy subjects which included 23 males and 6 females. Various dimensions were noted in great details.The annulus was found to be “D” shaped with a mean circumference of 10.7 cm in males and 9.167 cm in females. The anterior leaflet had a basal length of 3.952 cm in males and 3.137 cm in females. The height of cusp was 2.517 cm in males and 2.133 in female. The posterior mitral leaflet was uniscalloped in 16 hearts, biscalloped in six and triscalloped in seven hearts. The mean basal length of uniscalloped post erior leaflet was 6.654 cm in males and 5.927 cm in females. The basal length of bicuspid end triscalloped posterior leaflets is different and so is their height. Neve rtheless the main scallope in these leaflets had dimensions which were comparable with those of uniscalloped posterior leaflet.