left coronary artery

(redirected from Left coronary)
Also found in: Dictionary, Thesaurus.

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 ?
Vieussens' ring with congenitally hypoplastic left coronary arterial system.
In our case, the stalked tumor located on the left coronary leaflet of the aortic valve was excised by preserving the valve structure.
(25) reported the successful use of a pedicled gastroepiploic artery as a graft in a child with KD coronary lesions; we also adopted the use of this arterial graft for the distal RCA only, in addition to bilateral ITAs for the proximal RCA and the left coronary arteries (Fig.
(c) Entire course of the coronary artery fistula and bidirectional flow in the left coronary artery.
Immediately after left coronary ligation, we placed ntMSC cell sheets onto the surface of the left ventricle in the treatment group (n = 8 animals), whereas control animals did not receive cell sheets (n = 5 animals).
According to his study, surgical revascularization is recommended when (a) a CAA involves the main stem of the left coronary artery, (b) multivessel coronary artery disease is identified, (c) a giant CAA is present--diameter increase by 4 times the adjacent normal vessel segment, and (d) when other cardiac conditions mandate surgery.
McAllister, "Sudden death as a complication of anomalous left coronary origin from the anterior sinus of Valsalva: a not-so-minor congenital anomaly," Circulation, vol.
Coronary computed tomography indicated that the RCA originated from the left coronary sinus and passed between the aorta and the pulmonary artery (Figure 1).
Using the pulsatile boundary conditions based on a physiological waveforms of flow velocity and blood pressure, the results are compared with those obtained from the model with no particle to highlight the role of particle motion in the turbulence model of blood flow in the left coronary artery (LCA) connecting to the stenosed left anterior descending artery (LAD) (Figure 16) and the normal left circumflex coronary artery (LCX) (Figure 15).
Sinus of valsalva aneurysm (SVA) is an uncommon cardiac anomaly with an incidence of 0.09% in general population and 0.1-3.5% of all congenital heart defects.1,6 Approximately 65-85% SVAs originate from the right sinus of valsalva, 10-30% from noncoronary and <5% from left coronary sinus.1 It is usually congenital however rare cases of acquired SVAs are caused by atherosclerosis, trauma, cystic medial necrosis, syphilis and infective endocarditis.
The aorto-atrial fistula is a rare variant of congenital aorto-cameral fistula, most frequently originating from left coronary sinus.
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital cardiac malformation.