Vol. 5, Issue 3 (2019)
Prevalence of different types of coronary arteries in human cadavers from Telangana region
Author(s): Dr. Barun Kumar
Abstract: Normally heart is supplied by two coronary arteries: the right coronary artery (RCA) and left coronary artery (LCA). Variations with regard to origin, course, branching pattern, and termination of coronary arteries have been observed in many studies. Variability in the origin of the posterior inter-ventricular artery (PIVA) determines the predominance of heart. The coronary artery which gives the PIVA determines the coronary predominance. If PIVA is a branch of RCA it is called right predominance and if the PIVA is a branch of left circumflex artery then it is called as left predominance and if the same arises from both RCA and left circumflex artery then such heart is said to be balanced type of heart. The same parameters are used in the present study to determine the cardiac predominance. Hence the present study was planned to evaluate the prevalence of the coronary arteries in the cadaveric population from Telangana region. The present study was planned in Department of Anatomy, Prathima Institute of Medical Sciences, Nagunoor, Telangana from March 2007 to Jan 2008. The study was planned in 20 Cadaveric hearts obtained to institute. Cadaveric Heart specimen was immersed in 10% formaldehyde to preserve it. The heart was dissected and the coronary arterial dominance was noted. Schlesinger’s criteria was used to determine coronary dominance. Approval of the institutional ethical committee was taken prior to conduct of this study. The data generated from the present study suggest that majority of the people showed right predominance. So these people are less likely to be affected by the cardiac problems. Preoperative information about the coronary arterial anatomy and extent of coronary artery disease may be helpful in planning the use of coronary perfusion and other myocardial preservation techniques during surgery in order to reduce the incidence of myocardial infarction. Dominance can be a significant determinant of prognosis in acquired coronary artery disease. This study might help cardiologists and radiologists for the better understanding and management of cardiac diseases.
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