right coronary artery


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Related to right coronary artery: small cardiac vein, Left anterior descending artery

right cor·o·nar·y ar·ter·y (RCA),

[TA]
origin, right aortic sinus; distribution, it passes around the right side of the heart in the coronary sulcus, giving branches to the right atrium and ventricle, including the atrioventricular branches, the sinuatrial nodal branch, the right marginal artery, the atrioventricular nodal branch, and the posterior interventricular branch.
Synonym(s): arteria coronaria dextra [TA]

right coronary artery

one of a pair of branches of the ascending aorta, arising in the right posterior aortic sinus, passing along the right side of the coronary sulcus, and dividing into the right interventricular artery and a large marginal branch. It supplies both ventricles, the right atrium, and the sinoatrial node. Compare left coronary artery.

right cor·o·nar·y ar·te·ry

(rīt kōr'ŏ-nar-ē ahr'tĕr-ē) [TA]
Origin, right aortic sinus; distribution, it passes around the right side of the heart in the coronary sulcus, giving branches to the right atrium and ventricle, including the atrioventricular branches and the posterior interventricular branch.
Synonym(s): arteria coronaria dextra [TA] .

right coronary artery

Abbreviation: RCA
One of the two main epicardial arteries that feed the heart muscle. It originates from the right aortic sinus, a dilation in the aorta just behind one of the leaflets of the aortic valve. It runs to the right along the outside of the heart in the atrioventricular groove, i.e., the coronary sulcus, between the atria and the ventricles. Usually, its two main branches are the right marginal artery and the posterior descending artery. Among the heart regions it supplies are the sinoatrial (SA) and atrioventricular (AV) nodes, the right ventricle, the right atrium, and often, the inferior or posterior wall of the left ventricle.
Synonym: right main coronary artery See: aorta (Branches of aorta) and heart (The heart) for illus.
See also: artery
References in periodicals archive ?
1) Furthermore, differentiation of occlusion of the circumflex artery from occlusion of the right coronary artery (RCA) is often difficult because either may be associated with an ECG pattern of inferior AMI.
Main findings on ECHO include enlarged right coronary artery, absence of visualization of origin of the left coronary artery from the aorta, increase in the echogenicity of papillary muscles and observation of origin of the left coronary artery from the pulmonary artery.
As may have occurred in our case, air entering the left heart with the patient in the supine position is likely to induce inferior territory ischaemia, as the ostium of the right coronary artery is anterior (least dependent) and therefore is mostly likely to receive rising gas bubbles (1).
Patients with pacemakers had decreases in stenosis of 10%-15% in the left anterior descending artery, the circumflex artery, and the right coronary artery.
The right coronary artery was 80% narrowed by an atherosclerotic plaque at 1.
Preliminary results from the single-center study suggest that compared to SPECT MPI, flurpiridaz F 18 PET MPI has a higher diagnostic specificity for detecting right coronary artery disease and a higher accuracy for evaluating the extent of stress-induced myocardial perfusion abnormalities with coronary angiography as the gold standard.
Coronary angiogram showed thrombolysis in myocardial infarction (TIMI) grade 4 thrombus in the mid right coronary artery, with preserved antegrade flow (Figure 5).
2) For example, posterior wall calcification is compatible with a right coronary artery territory infarct (Figure 8) whereas calcium at the apex or in the ventricular septum usually results from an anterior descending territory infarct (Figure 7).
A 49-year-old male was scheduled for colonoscopy 630 days after having a paclitaxel drug-eluting stent inserted in his right coronary artery for management of an inferior myocardial infarction.
The North Little Rock, Arkansas, native saw his doctor immediately who found a 99 percent blockage in his right coronary artery.
She also had a total occlusion of the right coronary artery secondary to an old infarct (evident on retrospect on her ECG).