NJBMS - Volume 1, Issue 3, January - March 2011

Pages: 129-132


Author: Hirak Das M.D.

Category: Anatomy

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Coronary heart disease is assuming epidemiological proportions, causing increasing mortality and morbidity in both developed and developing countries. Coronary arteries show wide variations in origin, course, termination and branching pattern. These have not been extensively covered in the available Anatomy text books. Failure to distinguish between normal and anomalous structures may lead to misinterpretations in diagnosis and disastrous complications during heart surgery. With the rapid strides made in cardiac care in India, an in-depth study of the coronary arteries specific to the Indian population is needed. This study therefore aims to focus on the pattern of termination of left coronary artery in the

population of Assam, which is ethnically unique from the rest of India. Hundred hearts were studied in the department of Anatomy, Gauhati Medical College, Assam. The coronary arteries were examined by gross dissection. The modes of termination of the left coronary artery were noted. The left coronary artery had a length of 3-32 millimeter. It commonly bifurcated into anterior interventricular artery and circumflex artery in 60 % hearts. It showed trifurcation in 35%and quadrifurcation in 5 % cases. The modes of termination of the anterior interventricular artery and the circumflex artery were also noted. The results of the study were compared with other authors.

Keywords: Left coronary artery, Termination, Bifurcation, Trifurcation, Quadrifurcation.

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Editor in Chief of NJBMS Dr.Deepti Shastri, Professor and Head, Department of Anatomy, Academic Co-ordinator for Pre and Paraclinical Sciences, VMKV Medical College & Hospital, Salem.

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