Original Research Article
Year: 2021 | Month: February | Volume: 11 | Issue: 2 | Pages: 8-11
A Cadaveric Study on Coronary Dominance in South Indian Population
Suganya Saminathan
Assistant Professor of Anatomy, PSGIMSR, Coimbatore, Tamilnadu
ABSTRACT
Background: Adequate insight about coronary dominance is important to understand coronary artery diseases, interpret the radiological images and to devise a proper treatment protocol in cardiovascular diseases. It determines the amount and the area of myocardium being perfused by the left or right coronary arteries.
Aim: The aim of the present study is to observe the origin of posterior interventricular artery which determines the coronary dominance.
Materials and Methods: The study was done on 50 formalin fixed adult heart specimens in the Institute of Anatomy, Madras Medical College irrespective of age, sex, socio-economic status, religion and education status. The coronary arteries were examined by gross dissection and analyzed statistically.
Results: Right dominance was seen in 26(52%) hearts, left dominance in 10 (20%) hearts and balanced or codominance was seen in 14(28%) hearts.
Discussion: The coronary artery dominance has an important clinical & surgical significance. Most of the studies have reported a higher percentage of right dominance including the present study.
Conclusion: The present study on coronary dominance would be of assistance to interventional cardiologist and cardiothoracic surgeons to plan ahead during angioplasty & coronary artery bypass surgeries. Coronary dominance is also considered as an indicator in the incidence of myocardial infarction & also used as a prognostic factor during recovery.
Key words: codominance, coronary artery, coronary diseases, coronary dominance, coronary preponderance.