Study of Origin, Course and Branching Pattern of Left Coronary Artery in Hyderabad Karnataka Region
Study of Left Coronary Artery
Keywords:
Left coronary artery, Left anterior descending artery, Left circumflex arteryAbstract
Background: Sound knowledge of left coronary artery (LCA) is necessary for performing coronary angiographies and shunt surgeries. Study of origin, course of left coronary artery and its branches helps in judging the area of myocardium supplied by them which in turn helps in judging the size of infarct. Methodology: The present study is done on 76 adult heart specimens obtained from routine dissection conducted for undergraduate students in the Department of Anatomy at Bidar Institute of Medical Sciences, Bidar and also at other nearby medical colleges of Karnataka and Maharashtra. The data obtained is tabulated and analyzed statistically. Results: In our study, in all the cases the Left coronary artery originates from left posterior aortic sinus. Bifurcation of left coronary artery is seen in 81.5%, trifurcation in 14.5% and quadrifurcation in 4% cases. The left anterior descending artery (LAD) terminates by wrapping around apex in 70% cases and the left circumflex artery (LCX) terminates between obtuse border and crux of heart in 52.5% of cases. Conclusion: The present study is done to know origin, distribution, branching and level of termination of left coronary artery in adult human hearts of Hyderabad Karnataka region to provide vital inputs for making a correct diagnosis and planning treatment for procedures like coronary angiography, stenting procedures and surgical myocardial revascularization in extensive myocardial ischemia. [Jaishree H. NJIRM 2015; 6(2):1-5]
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