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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 7, Issue 3, July 2013 pp 141-142

Research Article

Origin of SA Nodal Artery: An Angiographic Study

Abdur Rafe Abdul Waheed¹, Shaikh S. I.², Diwan C. V.³

{¹Assistant Professor, ²Associate Professor, ³Professor and Head}

Academic Editor : Dr. Aher K.R.

Artery supplying the SA node is usually a branch of right coronary artery but in some of the individuals it can arise from the left coronary artery. In the present study angiographic evaluation of the origin of the SA nodal artery was done. Out of the 348 cases studied, 248(71.28%) had right coronary artery supplying the SA node while 100(28.74%) had left coronary artery supplying the SA node. In cases where SA nodal artery originated from the left coronary artery, it was a branch of the circumflex artery rather than the main trunk. The distribution of the SA nodal artery makes us understand the possible ischaemic etiology of the sinusal nodal syndrome and helps the surgeon accordingly.