Coronary Artery Dominance Pattern in East-Godavari District: A Cadaveric Study (original) (raw)
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Assessment of Coronary Artery Dominance in the Indian Cadavers
International Journal of Medical and Biomedical Studies, 2018
As Coronary artery disease is one of the most common heart diseases and also the major cause of death in developing countries. The aim of the present study is to evaluate the coronary dominance pattern which will help the cardiac physicians and surgeons for better diagnosis and management of coronary artery diseases. The study was planned on 30 heart subjects. These selected hearts are without any obvious pathology referred with cardiac conditions was enrolled into the study in Andaman and Nicobar Islands Institute of Medical Science (ANIIMS) from July 2016 to July 2017.The coronary arteries were dissected and analysed for the origin of sinoatrial Nodal artery and Observations were noted. The approval of the Institutional ethical committee was taken for the present study. The hearts identified with the congenital anomalies were excluded from study. From the above study it can be concluded that the most common is the right coronary dominance compared to left and balanced dominance as seen in this study. The present study is in comparison with the data generated by previous authors. This knowledge of normal anatomy and variations of coronary dominance will help interventional cardiologist, cardio-thoracic surgeons and radiologist to plan and provide proper management to patients.
A Cadaveric Study on Coronary Dominance in South Indian Population
https://www.ijhsr.org/IJHSR\_Vol.11\_Issue.2\_Feb2021/IJHSR-Abstract.02.html, 2021
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.
A Study of Coronary Artery Predominance and Its Clinical Importance
With the increasing trends of coronary heart diseases, the knowledge of variations in the coronary arteries is of paramount importance when considering the various surgical procedures. This study was conducted to know the variations in coronary artery dominance pattern. 77 formalin fixed hearts were dissected. Origin and area of distribution of posterior interventricular artery and SA nodal artery were noted. In 64 hearts (83.11%) posterior inter ventricular artery was a branch of right coronary artery and in 13 hearts (16.88%) it was a branch of left circumflex artery. SA nodal artery was a branch of dominant artery in 46 hearts (59.74%). It arose from non-dominant artery in 29 hearts (37.66%). In the remaining 2 hearts (2.6%) SA nodal artery was a branch from both.
A Study of Coronary Dominance in Population of North Karnataka
International Journal of Anatomy and Research
With the increase in the trend of modern sedentary lifestyle, the coronary heart diseases have also increased. The need to understand coronary artery anatomy in detail has become ever so important because of wide variations in the anatomy and various anomalies noted in different populations. Knowledge of coronary dominance is important to understand the severity of coronary artery diseases and plan the treatment of cardiovascular diseases. It determines the amount of myocardium that is perfused by the left or right coronary circulation. Materials and Methods: adult formalin fixed heart specimens were collected from routine under graduate and post graduate dissection at Belgaum Institute of Medical Sciences, Belagavi irrespective of sex and age. The origin of posterior interventricular artery was examined and dissected. Results were noted and compared with previous studies. Results: Out of 100 specimens studied in 83 (83 %) specimens the posterior interventricular artery was arising from right coronary artery and in other 17 (17%) specimens it arose from Left circumflex artery. In none of the specimens studied the posterior interventricular artery was arising from both the coronary arteries. Conclusion: The knowledge of normal anatomy and variations of coronary dominance will help interventional cardiologist, cardio-thoracic surgeons and radiologist of North Karnataka region in proper management of patients.
A study of coronary dominance pattern in central India population
IP Innovative Publication Pvt. Ltd, 2017
Aim of the study to know the coronary dominance pattern in central India population. Coronary arteries show wide variations among different populations. Origin of posterior interventricular artery was taken as the basis of dominance. The present study was undertaken on 70 adult human heart specimens from embalmed cadavers. Hearts were dissected and studied. Out of the seventy hearts studied, 55(78.57%) shows right dominance, 14(20%) shows left dominance and 1(1.42%) shows co-dominance or balanced dominance. The results of the study were compared with authors and variations were noted.
Background: Coronary heart disease (CHD) is one of the major causes of mortality and morbidity in developed countries as well as developing countries. If the coronary arteries are narrowed, the blood supply to the cardiac muscle is reduced. Coronary angiography is a radiological procedure to visualize the coronary arteries. The coronary bypass surgery has become common for the treatment of patients with unstable angina and myocardial infarction. That's why the knowledge of the coronary artery and their predominant pattern is necessary for the management of CHD. Materials and Methods: In the present study, 75 adult human hearts were collected and preserved in 10% formalin. The hearts were dissected carefully to observe the posterior inter-ventricular artery in the posterior inter-ventricular sulcus of each hearts. Results: Among 75 heart specimens, 46 showed right predominance, 18 showed left predominance and 11 showed balanced type of heart. Conclusion: According to this study, the right coronary artery is the predominant artery in majority of the cases in the cadaver of North Karnataka origin. So these people are less likely to be affected by the cardiac problems. This study might help cardiologists and radiologists for the better understanding and management of cardiac diseases.
A Study of Coronary Dominance in the Population of Assam
Journal of Anatomical Society of India, 2010
With the ever increasing load of coronary heart disease, an in-depth study of the coronary arteries has been felt by the medical fraternity. Coronary arteries show wide variations among different populations. These region based variations have not been dealt with enough in the standard books. The knowledge of these variations are of paramount importance when considering various surgical interventions. This study therefore aims to focus on the pattern of coronary dominance in Assam which is ethnically unique from the rest of India. Seventy cadaveric hearts were studied. The population under study included the population of Assam. The coronary arteries were examined by gross dissection and analyzed statistically. The modes of termination of the right coronary artery and the circumflex artery were described with the help offive points: atthe right border, between the right border and the crux, at the crux, between the crux and the left border and at the left border. Origin of the posterior interventricular artery was taken as the basis of dominance. Right dominance was found in 70%, left dominance was found in 18.57% while balanced pattern was observed in 11.43% hearts. The results of the study were compared with other authors and variations were noted.
Coronary dominance in south Indian population
Coronary artery anomalies are considered clinically insignificant and known to be associated with other congenital heart defects, myocardial ischemia and reduced life expectancy. Almost all elderly people have at least some impairment of coronary artery circulation. Therefore normal and pathological physiology of coronary circulation is one of the most important aspects in the entire field of medicine. In our study we dissected 80 human heart specimens to observe the coronary arteries from their origin to termination. We found 69 out of 80 are showing the right predominance (86.25%), 9 specimens with left predominance (11.26%) and remaining 2 of the balanced (2.5%) type of coronary circulation. The results of the study were compared with other literatures and variations are noted. In some cases we observed left predominance in males which indicates the reason for higher incidence of myocardial infarction in males when compared to females.
Study of Coronary Domination in North Indian Population
IOSR Journals , 2019
Background: Coronary artery disease is one of the major reasons for death in developing countries like India. Dominance pattern of the heart has an important clinical significance. Left dominant anatomy is believed to be associated with worse prognoses for patients with acute coronary syndrome and stable coronary artery disease. Not much study has been done in North India regarding dominance of coronary artery. This study was to determine the pattern of coronary artery dominance in North Indian hearts. Results: This study was carried on 76 specimens of cadaveric hearts and observed for the dominance of coronary arteries. Out of 100 specimens studied, the posterior interventricular artery originated from RCA (right coronary artery) in 83 (83%) cases, in 14 (14%) cases posterior interventricular artery originated from LCA, in 3 (3%) cases posterior interventricular artery originated from both RCA and LCA Conclusions: Considering the risk of higher mortality in left coronary dominance and coronary co-dominance pattern, more prevalence of myocardial infarction in left coronary dominance.. This study would be helpful to the cardiologists, radiologists and surgeons of North India.