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]

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 ?
Caption: Figure 1: Mid-oesophageal short axis view through the aortic valve revealing dissection and thrombosis of the left main coronary artery with absence of blood flow on colour Doppler.
When treating patients with left main coronary artery disease, the large diameter of the left main artery and the significant vessel tapering at that location represents serious challenges for conventional balloon-expandable DES that often result in important stent structural deformations.
Intraoperatively, a slit-like orifice of the left main coronary artery was found in close proximity to the RCA ostium within the right coronary sinus of Valsalva.
The diameter of coronary vessels decreases from 5 mm in the left main coronary artery down to 1 mm in the distal left anterior descending coronary artery (6).
Their source was a 1999 review that tracked 1,504 pilots, excluding 17 who had been found to have left main coronary artery disease.
Angioplasty candidates were referred for bypass surgery if they had 3-vessel or left main coronary artery disease.
The stented artery was a left main coronary artery in eight percent of the cases examined in the series.
Notably, the broadening diameter of the left main coronary artery was more obvious in the KD model group, and all the CAA-like ectasia changes were found in the left coronary arteries.
In experienced centres it is routine to engage both Left main coronary artery and Right coronary artery with the guide catheters for simultaneous injection and seeing entire coronary tree for tracing the retrograde flow in occluded artery.
8 CABG in presence of significantly diseased left main coronary artery is likely to pose many challenges and patients with significant LMS disease are likely to become hemodynamically unstable at time of induction and during cardiac manipulation at time of surgery.
The gold standard treatment for left main coronary artery (LMCA) stenosis is the emergency coronary artery bypass grafting to its branches, left anterior descending artery (LAD), and left circumflex artery (LCX).