Type of Article: Original Research
Year: 2016 | Volume 4 | Issue 1 | Page No. 1905-1911
Date of Publication: 29-02-2016
ANATOMIC VARIABILITY OF CORONARY OSTIA IN ADULT HUMAN CADAVERIC HEARTS
Hima Bindu Nalluri *1, Abid Ali Mohammed 2, Vasntha Leela 3.
*1 Associate Professor of Anatomy, Bhaskar Medical College, Hyderabad, Telangana, India.
2 Assistant Professor of Anatomy, Bhaskar Medical College, Hyderabad, Telangana, India.
3 Professor of Anatomy, Deccan College Of Medical Sciences, Hyderabad, Telangana, India.
Address: Dr. Hima Bindu Nalluri, Associate Professor of Anatomy, Bhaskar Medical College, Yenkapally, Moinabad, Ranga Reddy, Hyderabad, Telangana 500075, India.
Introduction: In the light of increased incidence of coronary arterial diseases, knowledge of the variations in the number and location of coronary ostia is essential in the planning of various interventional and surgical procedures on the coronary arteries as well as aortic valve replacements.
Aim: To investigate the variations in the origin, number, size and location of coronary ostia in relation to aortic leaflets.
Methods: Eighty adult human cadaveric hearts with great vessels in situ were studied for coronary ostia.
Results: 78 hearts had tricuspid aortic valve and two hearts had bicuspid aortic valve. Anomalous origins of right coronary artery from the left posterior aortic sinus in one heart and the left coronary artery from the non-coronary sinus in another heart were noted. Both right and left coronary arteries arose from the anterior aortic sinus in two hearts with bicuspid aortic valve. Single right coronary ostium was seen in 63 hearts (78.75%), two right coronary ostia were found in 14 hearts (17.5%), three right coronary ostia were found in two hearts (2.5%), and four were found in one heart(1.25%). The left coronary ostium was single in all hearts. The mean diameter of right coronary ostium (RCO) was 3.17±0.87 mm and of the left coronary ostium (LCO) was 4.1±0.83 mm. The relation of the right and left coronary ostia to the sinu-tubular junction, to the bottom of the related sinus and to the commissures was also analyzed in detail.
Conclusion: This study provides data on normal coronary ostial morphometry and topography and there were significant differences in the number of right coronary ostia than of the left coronary ostium. The observed large variations of coronary ostial position in relation to the sinu-tubular junction and to the bottom of the aortic sinus emphasize the importance of considering such anatomic variations in the development of treatments for coronary artery occlusion.
Key words: Coronary Ostia, Sinu-Tubular Junction, Aortic Sinuses, Right Coronary Ostium, Left Coronary Ostium.
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Hima Bindu Nalluri, Abid Ali Mohammed, Vasntha Leela. ANATOMIC VARIABILITY OF CORONARY OSTIA IN ADULT HUMAN CADAVERIC HEARTS. Int J Anat Res 2016;4(1):1905-1911. DOI: 10.16965/ijar.2016.110