left coronary artery

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left cor·o·nar·y ar·ter·y (LCA),

[TA]
origin, left aortic sinus; distribution, it divides into two major branches, an anterior interventricular that descends in the anterior interventricular sulcus, and a circumflex branch that passes to the diaphragmatic surface of the left ventricle; gives atrial, ventricular, and atrioventricular branches.
Synonym(s): arteria coronaria sinistra [TA]

left coronary artery

one of a pair of branches from the ascending aorta, arising in the left posterior aortic sinus, dividing into the left interventricular artery and the circumflex branch, and supplying both ventricles and the left atrium. Compare right coronary artery.

left cor·o·nar·y ar·te·ry

(left kōr'ŏ-nar-ē ahr'tĕr-ē) [TA]
Origin, left aortic sinus; distribution, it divides into two major branches, an anterior interventricular, which descends in the anterior interventricular sulcus, and a circumflex branch, which passes to the diaphragmatic surface of the left ventricle; gives atrial, ventricular, and atrioventricular branches.
Synonym(s): arteria coronaria sinistra.

left coronary artery

Abbreviation: LCA
One of the two main epicardial arteries that feed the heart muscle. It originates from the left aortic sinus, a dilation in the aorta just behind one of the leaflets of the aortic valve. At the level of the junction between the atria and the ventricles, the left coronary splits into the circumflex artery, which runs to the left along the outside of the heart in the atrioventricular groove, and the left anterior descending artery, which continues down the interventricular groove. Among the heart regions it supplies are most of left atrium, the left ventricle, and the interventricular septum.
Synonym: left main coronary artery See: aorta (Branches of aorta)for illus.; heart (The heart) for illus.
See also: artery
References in periodicals archive ?
Expanding indications for PCABS for congenital heart diseases and their surgical complications PCABS utilizing the ITA is certainly applicable for coronary artery problems other than KD, such as coronary obstruction after arterial switch operations for complete transposition of the great arteries, congenital agenesis of the left coronary trunk, anomalous origin of the left coronary artery from the pulmonary artery, iatrogenic injury of the coronary artery during cardiac operations, and other congenital coronary anomalies.
Clinical characteristics, diagnosis and treatment of children with anomalous origin of the left coronary artery from the pulmonary artery in each age group.
During surgery, there was no possibility for reimplantation of the orifice of the anomalous left coronary artery on the aorta, thus it was closed with a fresh autologous pericardial patch.
3],[4] It is usually well tolerated at birth due to the elevated pressure in newborn pulmonary arteries, which provides an antegrade perfusion of myocardium through the left coronary artery.
On analysis of the coronary arteries, the left coronary artery (LCA) was seen arising from the left side of the main pulmonary trunk and measuring 0.
Then Dr Varma reimplanted both right and left coronary artery buttons on to the Dacron conduit.
The CTA revealed that the left coronary artery (LCA) arose from the postero-lateral aspect of the main pulmonary artery (PA) (a diagnostic hallmark), just beyond the pulmonary valve (Figures 2 and 3).
Dissection of the proximal left coronary artery wall that causes significant narrowing of the vessel lumen.
Diallo suffered from a rare congenital heart defect called Anomalous Left Coronary Artery from the Pulmonary Artery (ALCAPA), a condition in which the left coronary artery (which carries blood to the heart muscle) abnormally connects to the pulmonary artery rather than the aorta during fetal development.
The left coronary artery arose from the right coronary sinus of Valsalva and coursed between the aorta and pulmonary trunk in the wall of the aorta.
Anomalies of the left coronary artery (LAD) in decreasing order of frequency included myocardial bridge 71(23.