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Year : 2019  |  Volume : 68  |  Issue : 3  |  Page : 232-235

Origin and prevalence of right conus artery: A cadaveric study

Department of Anatomy, TMMC and RC, TMU, Moradabad, Uttar Pradesh, India

Correspondence Address:
Dr. Dilshad Ahmad Usmani
TMMC and RC, TMU, Moradabad, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JASI.JASI_122_19

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Introduction: The human heart is mainly supplied by the right and left coronary artery. Conus artery is one of the essential branches of the right coronary artery (RCA). If this artery emerges directly from the anterior aortic sinus with no noticeable common trunk, this is known as the third coronary artery (TCA). Often, this anatomic variation left unvisualized during selective coronary arteriography. This study is an effort to notice the incidence and origin of the right conus artery in human cadaveric heart. Material and Methods: A total of 50 human cadaveric hearts were dissected, and the incidence and origin of conus artery were noted. Results: Out of the 50 hearts examined, 10 hearts had separate source of conus artery through anterior aortic sinus. Here, the artery is termed as TCA. In 11 cases, the conus artery show aortic origin with common opening of RCA. In 29 cases, conus artery arises outside the aorta from RCA. Among the 10 cases, origin of conus artery is directly from the aorta, 7 (14%) were male and 3 (6%) were female. Discussion and Conclusion: The occurrence of TCA is a blessing to a person and the one with TCA is less possibly to die from unexpected inherent death from cardiac pathology.

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