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IJAR.2017.490

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Type of Article:  Original Research

Volume 6; Issue 1.1 (January 2018)

Page No.: 4857-4860

DOI: https://dx.doi.org/10.16965/ijar.2017.490

ANATOMICAL STUDY OF ORIGIN OF SINOATRIAL NODAL ARTERY IN HUMAN CADAVERIC HEARTS

Priti Sinha *1, Sanjeev Saxena 2, Satyam Khare 1, Shilpi Jain 1, Rashmi ghai 1, Ramkumar Kaushik 1.

*1 Department of Anatomy, Subharti Medical college, Meerut, UP, India.

2 Cardiologist, Metro Heart Institute, Meerut, UP, India.

Address for Correspondence: Dr Priti Sinha, Associate Professor, Department of Anatomy, Subharti Medical College, Meerut, UP, India. PIN- 250005, Mob: 9837017328 E-Mail: drpritianatomy@yahoo.com

Abstract

Introduction: Sinoatrial Nodal artery is an artery which supplies the sinoatrial node, the natural pacemaker center of the heart, usually a branch of right coronary artery but also from left coronary artery in variable percentage in different population.

Aim: The aim of the study was to study the anatomical origin of  sinoatrial Nodal artery , from Right coronary artery or left coronary artery in indian human cadavers

Materials and Methods: The study was carried out on 50 formalin fixed Adult Human Cadaveric Heart of Indian population obtained from department of Anatomy subharti medical college Meerut UP INDIA. Specimens with gross congenital anomalies were excluded from the study. The coronary arteries were dissected for the origin of sinoatrial Nodal artery.

Results: Out of total 50 cases studied, sinoatrial nodal artery was originating from right coronary artery in 39 (78%) hearts while in remaining 11 (21.27%) hearts SA nodal artery was arising from left coronary artery. When it is arising from left coronary artery it is a branch of left circumflex artery rather than the main trunk.

Conclusions: In present study of Indian Human cadaveric hearts SA Nodal artery is originating from right coronary artery in maximum (78.0) percent population comparing with the previous studies done globaly. Further studies are needed in Indian population in relation to SA Nodal Artery. Study of origin and distribution of sinoatrial nodal artery helps cardiologist and cardiac surgeons to understand the ischemic etiology of sinus node diseases and corrective steps needed.

Key words: Sinoatrial Nodal Artery, Right Coronary Artery, Ischemic, Cadaveric Heart.

REFERENCES

  1. Chummy S Sinnatamby. Last’s anatomy, Regional and Applied 11th Edition, Elsevier Churchill Livingston, 2006, 210.
  2. Caetano AG and Lopes AC. Critical analysis of the clinical and surgical importance of the variations in the origin of sino-atrial node artery of the human heart. Rev. Assoc. Med Brass 1995;41(2):94-102.
  3. Standring S. The anatomical basis of clinical practice 40th Edition, Philadelphia: Elseveir Churchill Livingston, 2008:978-980.
  4. Proudfit W L, This week’s citation classic. Circulation; 1966;33:901-10.
  5. Richard S. Snell. Clinical anatomy be regions, 8th edition, Wolters Kluver, Lippincot Williams and Wilkins, 2008:113,114.
  6. Kalpana R. A Study on principal branches of coronary arteries in humans. J Anat. Soc. India 2003;52(2):137-140.
  7. N Hima Bindu. Variations in the origin and course of sinoatrial nodal artery (Abstract no. 45). Anat Soci. Ind 2006:61.
  8. Oncio M. Specifics of the blood supply of the sinoatrial node. Rev Med Chir Soc Med Nat lasi. 2006 Jul-Sep;110(3):667-73.
  9. A.M. A study of branching pattern and distribution of coronary arteries in adult human heart. Dissertation M.D. Anatomy, 2008.
  10. Lakshmi Ramanathan. Origin of SA and AV nodal arteries in South Indians: an angiographic study. Arq. Bras Cardiol. 2009 May;92(5).
  11. Arda Sanh Okmen. Sinoatrial node artery arising from posterolateral branch of right coronary artery: definition by screening consecutive 1500 coronary angiographies. Anadolu Kardiyol Derg 2009;9:481-5.

Cite this article: Priti Sinha, Sanjeev Saxena, Satyam Khare, Shilpi Jain, Rashmi ghai, Ramkumar Kaushik. ANATOMICAL STUDY OF ORIGIN OF SINOATRIAL NODAL ARTERY IN HUMAN CADAVERIC HEARTS. Int J Anat Res 2018;6(1.1):4857-4860. DOI: 10.16965/ijar.2017.490