The study of anatomical variations of coronary arteries- A Case Report

Abstract

There are numerous variations in pattern of coronary arteries reported by various authors in previous studies; however, in this study more types of variations are found. The right coronary artery arises from right aortic sinus and then run in right coronary sulcus and gives the right marginal artery and then runs in posterior right coronary sulcus and reaches up to crux and gives the posterior interventricular branch and also gives the two more branches which run on posterior surface of left ventricle in spite of making anastomosis with left circumflex artery at crux. Posterior interventricular artery reaches at apex of heart and anastomose with the anterior interventricular artery. The left coronary artery arises from left aortic sinus and runs in left anterior coronary sulcus and in sulcus it gives three branches one run in ant interventricular sulcus and other as diagonal artery. Anterior interventricular artery further gives one branch parallel to the artery which further divides in two more branches and supplies the anterior surface of left ventricle. The main anterior interventricular artery reach up to apex and anastomose with posterior interventricular artery. The circumflex artery runs in left anterior coronary sulcus and then runs on the posterior surface of left ventricle( in spite of left posterior coronary sulcus) runs near the left margin of posterior surface of left ventricle and anastomoses with the one branch of anterior interventricular artery near the apex.