Title: Study of Morphological variations of Left Coronary Artery in Human cadaveric hearts
Author: Dr C. P. Anbarasi
DOI: https://dx.doi.org/10.18535/jmscr/v9i1.17
Abstract
Background: The arterial supply to the heart is provided by the coronary arteries which are the branches of the Ascending aorta. Variation in the origin, course and branching pattern of left coronary artery affect the blood supply to the heart. Knowledge of variations in the morphology of Left Coronary artery is useful for Cardiologists and Cardiothoracic Surgeons for angiographic interpretation and Stenting Procedures.
Materials and Methods: 50 Heart specimens were examined in the Institute of Anatomy, Madurai medical college, Madurai.
Results: In the present study conducted in 50 specimens, left coronary ostia found in left posterior aortic sinus in all 50 specimens (100%). Level of ostium below the sinotubular junction (94%), above STJ (4%) and at STJ (2%). Length of the main trunk ≤5mm (14%), 6 to 10 mm (64%), 11 to 15 mm (20%) and 16 to 20 mm (2%).
Conclusion: Variations in the location, level of ostium and length of main trunk of left coronary artery help the clinicians for performing angiography and angioplasty.
Keywords: Left coronary artery, left coronary ostia, sinotubular junction, length of main trunk.
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