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

Volume 8, Issue 3, October 2013 pp 238-239

Research Article

Occurrence and Anatomical Distribution of Myocardial Bridges and Co-relation with Sudden Death and Coronary Atherosclerosis


Rajendra Prasad. V. K.*, Joseph. T. John**,Supriya N. K.***

*Assistant Professor of Forensic Medicine, Government Medical College, Thrissur, Kerala, INDIA.

**Professor and Head of Forensic Medicine, Amala Institute of Medical Sciences, Thrissur, Kerala, INDIA.

***Professor of Pathology, Government Medical College, Kozhikode, Kerala, INDIA.


Academic Editor : Dr. Aher K.R.


Human hearts from four hundred consecutive medico legal autopsies  were examined morphologically and histo pathologically, for myocardial bridges, in Departments of Forensic Medicine and Pathology, at Medical College, Calicut, Kerala state, South India. Only twenty two among the four hundred cases showed myocardial bridging, indicating low incidence in Keralites compared to Northwest Indians, Taiwanese, Japanese, Czechs and Brazilians. Eighteen cases occurred in age group between twenty and sixty, and nineteen in males. Both observations were, but, statically insignificant. Cause of death in sixteen cases was established to be non cardiac, in two cases, suggestive of poisoning, and in the remaining four cases, clearly suggestive of Coronary Artery Disease due to atherosclerotic narrowing. Hence, the role of myocardial bridges in causing death, at the most, could be only contributory in the latter four cases. Right coronary artery (RCA) presented myocardial bridging in one case, contradicting the observation, in several studies, of myocardial bridges occurring only in left anterior descending coronary artery(LAD). Atherosclerosis was histo pathologically confirmed in the tunneled segments in twenty one out of the twenty two cases, which negated the common finding that the tunneled arteries were free from occurrence of Atherosclerosis.