Type of Article:  Original Research

Volume 5; Issue 3.2 (August 2017)

Page No.: 4238-4241

DOI: https://dx.doi.org/10.16965/ijar.2017.295


Kannan Subramanian 1, Komala Nanjundaiah *2.

*1 Assistant professor, Department of Anatomy, Karpagam Faculty of Medical Sciences & Research, Coimbatore, India.

2 Associate Professor, Department of Anatomy, M.S.Ramaiah Medical College, M.S.R Nagar, Bangalore, Karnataka, India.

Address for Correspondence: Dr. Komala Nanjundaiah, Associate Professor, Department of Anatomy, M.S.Ramaiah Medical College, M.S.R Nagar, Bangalore 560054, Karnataka, India. E-Mail: komas2001@yahoo.com


Back ground: Human heart is supplied by coronary arteries. Variations in the branching pattern of coronary arteries can affect the blood supply to the heart.

Context: Origin of posterior interventricular artery determines the coronary dominance. Prognosis of inferior wall infarcts is related to coronary dominance.

Purpose: The present study was conducted in 60 specimens of human cadaveric hearts and observed for number, origin, and level of termination of posterior interventricular artery.

Results: Present study was conducted in 60 specimens and right coronary dominance was observed in 91.7%. The incidence of left coronary dominance was observed in 6.7% and co-dominance was found in 1.7%.

Conclusion: Posterior interventricular artery has special importance as it determines the coronary dominance. The blood supply of the inferior myocardium depends on the dominance. Hence awareness of these variations plays an important role in treating inferior wall infarcts. Also awareness of coronary artery variations is important during interventions like imaging by conventional catheters.

Key words: Posterior Interventricular Artery, Coronary Dominance, Right Dominance, Left Dominance, Balanced Dominance.


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Cite this article: Kannan Subramanian, Komala Nanjundaiah. STUDY OF POSTERIOR INTERVENTRICULAR ARTERY IN HUMAN CADAVERIC HEARTS. Int J Anat Res 2017;5(3.2):4238-4241. DOI: 10.16965/ijar.2017.295