Morphometric And Anatomical Study Of Coronary Arteries In Different Ages In Kirkuk Governorate

Abstract

Background: The ascending aorta gives rise to the two main coronary arteries including the right coronary artery (RCA) and left coronary artery (LCA). The right coronary artery emerges from the right anterior aortic sinus, while the left coronary artery emerges from the left posterior aortic sinus.

Aim of the study: The current study aims to describe the normal anatomical coronary artery length, origin, external diameter, and distribution.

Material and methods: Twenty hearts of twenty normal Iraqi adults, with age ranged from 40- 70 years were taken from the forensic medicine department of Kirkuk Teaching Hospital in the Azadi region during the period from September 2021 to June 2022. The study specimens were grouped according to the cadaver age and were inspected grossly for the course of each coronary artery, anatomical position, width, and length. Results: The mean length and diameter of RCA 124.3 ± 35.3 mm and 3.4 ± 0.7 mm respectively. The mean length and  diameter of branches of RCA was for right marginal artery (RMA) 42.4 ± 11.6 mm, 1.6 ± 0.3 mm, for sino atrial nodal artery (SANA) 15.3 ± 6.7 mm, 1.2 ± 0.3 mm, for posterior interventricular artery (PIVA) 54.5 ± 10.1 mm, 1.9 ± 0.4 mm and for conus artery 16.2 ± 8.2 mm, 0.9 ± 0.2 mm respectively. The mean length and diameter of LCA 11.2 ± 3.5 mm and 4.2 ± 2.0 mm respectively. The mean length and diameter of branches of LCA was for anterior interventricular artery (AIVA) 85.4 ± 17.8 mm, 3.1 ± 0.2 mm, for left circumflex artery (LCX) 45.1± 17.9 mm, 2.7 ± 0.6 mm, for left marginal artery (LMA) 40.3 ± 16.4 mm, 1.5 ± 0.3 mm and for left diagonal artery (LDA) 26.6 ± 12.4 mm, 1.9 ± 0.4 mm respectively