A Study of Branching Pattern and Dominance of Coronary Arteries Using Coronary Angiogram

Abstract

BACKGROUND AND OBJECTIVESKnowledge of the normal and variant anatomy of coronary circulation is a vital component in the management of coronary artery diseases. The study was undertaken to know the dominance, branching pattern and luminal diameter of the coronary arteries. METHODSNinety normal coronary angiograms of patients referred to A J Hospital & Research Centre, Mangalore for diagnostic coronary angiography were included. They were recorded on CDs and studied with cardiac view software. RESULTSBoth male and females showed a higher prevalence of right coronary dominance. The right dominance was present in 78.9% and left dominance in 21.1%. Bifurcation of left coronary artery was more common than trifurcation. The present study showed that 8.89% of cases had ramus intermedius branch. The left anterior descending artery terminated at the apex in 20% of cases and beyond the apex in 80% of cases. INTERPRETATION AND CONCLUSIONRight coronary dominance was more common than left dominance. Bifurcation was the most common branching pattern of left coronary artery. The left anterior descending artery terminated beyond the apex in majority of cases. KEYWORDSCoronary artery; Branching pattern; Coronary angiogram. HOW TO CITE THIS ARTICLE: Revankar SK, Rao CR, Udyavar A, et al. A study of branching pattern and dominance of coronary arteries using coronary angiogram.