left coronary artery

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Related to Left main coronary artery: right coronary artery

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]
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Safety and Effectiveness of Second-Generation Drug-Eluting Stents in Patients With Left Main Coronary Artery Disease.
Baessler et al., "Familial aggregation of left main coronary artery disease and future risk of coronary events in asymptomatic siblings of affected patients," European Heart Journal, vol.
A study of two large registries composed of 27 young competitive athletes who died of sudden cardiac death (SCD) revealed that 23 had left main coronary artery from the right aortic sinus and 4 had a right coronary artery from the left sinus [12].
The patient was stabilised and urgent coronary angiography revealed a large dissection of the left main coronary artery, with absence of flow in both the left anterior descending and circumflex coronary arteries.
However, bypass is a better alternative to people with diabetes, weakened heart muscle, disease of left main coronary artery, valve disease or with multiple blocks.
Left heart catheterization showed severe stenosis in the distal left main coronary artery, along with three-vessel coronary artery disease.
But in the past decade, doctors have installed stents in thousands of people with three or more blocked vessels or a blocked left main coronary artery.
More debate ensued after a major study--the SYNTAX trial, published March 5 in the New England Journal of Medicine (NEJM)--concluded that surgery was still the standard of care for patients with three blocked coronary arteries or left main coronary artery disease.
Additional description included aneurysmal dilatation of the left main coronary artery (8 mm in diameter proximal to its bifurcation) and of the proximal segment of the left anterior descending coronary artery (LAD), which measured 6.4 mm in diameter.
During the procedure, the patient suffered from a dissection to her left main coronary artery. Dr.