Main Left Coronary Artery System – Angiographic Anatomy.

SINGH, S.; AJAYI, N.; LAZARUS, L. & SATYAPAL, K. S.Morphologic relationship between the coronary arteries during fetal development. Int. J. Morphol., 35(4):1197Morphol., 35(4): -1202Morphol., 35(4): , 2017. SUMMARY:A detailed understanding of the coronary arteries is of paramount importance in the management of coronary arterial diseases. The arterial supply to the heart originates from right (RCA) and left (LCA) coronary arteries which form an oblique inverted crown within the atrioventricular groove. This study aimed to document the embryologic relationship between the RCA and the LCA including their lengths, diameters, branching patterns and arterial dominance in fetuses. Forty-one human fetal heart specimens with an age range of 13.13 to 26.95 weeks were dissected at the Department of Clinical Anatomy, University of Kwazulu-Natal, Durban, South Africa. The RCA arose from the right aortic sinus and was dominant in all the specimens. The LCA was classified into types according to their branching pattern. The bifurcation, trifurcation and quadrifurcation of the LCA occurred in 68.3 %, 29.3 % and 2.4 % of hearts, respectively. The mean lengths of the RCA and LCA were 0.98±0.54 mm and 1.83±0.77 mm, respectively. The mean external diameters of the RCA and LCA were 0.38±0.12 mm and 0.49±0.17 mm, respectively. There was a significant correlation between the RCA and LCA length and the fetal age which is indicative of significant changes in the coronary vasculature with fetal growth.

show abstract

“…This differed from the results of Kulkarni & Mehta (2012) and Jaishree et al (2015) who found 11.54 % and 14.5 %, respectively (Table III).…”

Section: Discussioncontrasting

confidence: 57%

Morphologic Relationship Between the Coronary Arteries During Fetal Development

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In general, LCA was reported to have wider Ostia than the right (Silitongo et al, 2016;Thakre et al, 2017). Also, the ostial diameters are subject to differences in ethnicity and geographic location (Kulkarni Mehta, 2012;Kulkarni & Paranjpe, 2015). These findings force cardiologists and coronary angiographer to know the average diameters of the LCA within each specific population, and also, the designing or selection of catheters should consider the ostial diameter (Nasr & El Tahlawi, 2018;Luckrajh et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Diameter of the Orifice of the Left Coronary Artery: Angiographic Study

Rezigalla¹,

Alhassen²,

Ali³

2022

Int. J. Morphol.

View full text Add to dashboard Cite

The ongoing advances in the technology of coronary artery angiograms have put high demands on the basic knowledge of coronary arteries. This study describes the angiographic morphology of the ostium (orifice) of the left coronary artery among Sudanese with respect to sex, age, length, and BMI. The study design is a cross-sectional retrospective hospital-based conducted from 2014 to 2016. The inclusion criterion of participants is adult males and females presented to the cardiac centers for elective angiograms. The exclusion criteria are age below 18 years, documented congenital heart disease, and previous coronary bypass. Angiograms were done using a digital radiographic system. Data was collected through a predesigned data collection sheet. The data were entered and analyzed using SPSS v27. A test of correlation was done between the different variables. The data were presented in the form of tables. A P-value of <0.05 was considered statistically significant. The total number of participants was 441; males and females represent 42.9 % and 57,1 %, respectively. The mean age of participants was 56.24±8.68 years. The left coronary artery originated from the left aortic sinus. The mean diameter and length of the left coronary artery were 3.8±0.70 mm and 8.1576±4.32 mm, respectively. A significant negative correlation was reported between the diameter of the orifice and both age and length of the left coronary artery. A non-significant difference between males and females in the diameter of the left coronary artery at ostium (P=0.058) and a significant difference in the length (P=0.00). Sudanese have the smallest diameter of the orifice of the left coronary artery among Africans. Sudanese males have a smaller diameter of orifice than females; females have the longest arteries. A wider orifice of the left coronary artery is associated with a short arterial length.

show abstract

Detailed Morphometric Analysis on Left Coronary Artery in the Population of North-East India

Manpoong,

Saikia,

Ram

et al. 2023

Cureus

View full text Add to dashboard Cite

Introduction The left ventricle, the cardiac chamber responsible for blood supply to the whole of systemic vasculature, receives most of its blood supply from the left coronary arteries (LCAs). Atherosclerosis of these vessels leading to myocardial infarction is a leading cause of death. Several invasive diagnostic or therapeutic coronary interventions are available for such patients. Just like any vascular procedure, a prior comprehensive knowledge of the dimensions of these vessels and their branching pattern is essential to perform these procedures uneventfully. No previous study in the population of North-Eastern India documents the population-specific reference for morphometric values of left coronary arteries and their anatomic variations. So, this study aims to fill up this lacuna. Methods This study was conducted in the Department of Anatomy in collaboration with the Catheterization Lab, Department of Cardiology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong. Coronary angiograms (CAG) of 100 subjects - 38 females and 62 males - were obtained from the Cardiac Catheterization Lab. Coronary angiograms were studied for the normal variant anatomy and morphometry of the LCAs - the left main coronary artery (LMCA), left anterior descending (LAD), and left circumflex (LCX). Results The mean length and luminal diameter of LMCA were found to be 9.13±3.23 mm and 4.38±0.58 mm, respectively. The mean length of LAD and LCX were 109.46±14.49 mm and 66.27±11.56 mm, respectively. Ramus intermedius was present in 32% of the subjects, whereas the remaining subjects had bifurcations of LMCA. We also found that 86% of patients had “wrap-around LAD”, while in 11% of our subjects, LAD failed to reach the apex. Diagonal branches originating from LAD were single, duplicated, and multiple in 14%, 62%, and 24% respectively. The marginal branches were found to be single, double, and multiple in 20%, 51%, and 29% respectively. Conclusion This study establishes a baseline reference on morphometry of the left coronary artery specific to the population of North-East India. This study may be of assistance to radiologists and cardiologists when performing procedures on the left coronary arteries in the population of North-Eastern India, with respect to the prevalence of anatomic variations.

show abstract

Main Left Coronary Artery System – Angiographic Anatomy.

Cited by 3 publications

References 2 publications

Morphologic Relationship Between the Coronary Arteries During Fetal Development

Morphologic Relationship Between the Coronary Arteries During Fetal Development

Diameter of the Orifice of the Left Coronary Artery: Angiographic Study

Detailed Morphometric Analysis on Left Coronary Artery in the Population of North-East India

Contact Info

Product

Resources

About