The Clinical Significance of Morphological Study of Variations of papillary muscles in Adult Human Hearts

Dr.S.Kavitha; Dr. V. Selvam

Volume : VII, Issue : V, May - 2018

The Clinical Significance of Morphological Study of Variations of papillary muscles in Adult Human Hearts

Dr. S. Kavitha, Dr. V. Selvam

Abstract :

Due to affluent lifestyle, a heart disease has become important cause of death. Among heart diseases, Valvular diseases contribute significantly to increased morbidity and mortality. Valve replacements are done using both artificial and cadaveric heart valves. For fixation of a cadaveric heart valve the operating surgeon should be well versed in both the dimensions and normal architecture of both valves of heart. Both ventricles of the heart contain specialized myocardial elements known as the papillary muscles, which play a crucial role in the flow of blood through the heart chambers. In the present study toenumerate the number of papillary muscles in both ventricles and itsvariation of number of each papillary muscle bellies, shape of papillary muscles and tip of papillary muscles. One hundred and twenty five adult human hearts irrespective of age and sex were used VMKV Medical College Salem, Tamilnadu, India for conducting the study. In the present studythe right ventricle papillary muscles with two bellies were found in 6 % of the cases and with three bellies in 72%, four bellies in 19% and five bellies in 3 %. In the present study, the tip of right anterior papillary muscle was undivided in 75%, bifid in 20% and trifid in 5% of the cases. In the tips of right posterior papillary muscle, it was undivided in 5%, bifid in 45% and trifid in 50% of the heart specimens.When the shape of the papillary muscle is altered; it gives rise to increased incidence of ischemia. So the conical shaped papillary muscles appear to be the ideal shape as it facilitates smooth blood flow through the heart.