anterior interventricular branch of left coronary artery

(redirected from Anterior descending branch)

anterior interventricular branch of left coronary artery

[TA]
terminal branch (with circumflex coronary artery of left coronary artery); descends in anterior interventricular groove close to apex, anastomosing with posterior interventricular artery. Supplies most of sternal aspect of ventricles and anterior two thirds of interventricular septum, including atrioventricular bundle of conducting tissue.

an·te·ri·or in·ter·ven·tri·cu·lar branch of left cor·o·nary ar·te·ry

(an-tēr'ē-ŏr in'tĕr-ven-trik'yū-lăr branch left kōr'ŏ-nar-ē ahr'tĕr-ē) [TA]
Terminal branch (with circumflex coronary artery of left coronary artery); descends in anterior interventricular groove to apex, anastomosing with posterior interventricular artery. Supplies most of sternal aspect of ventricles and anterior two thirds of interventricular septum, including atrioventricular bundle of conducting tissue.
Synonym(s): anterior interventricular artery, left anterior descending artery, ramus interventricularis anterior arteriae coronariae sinistrae.
References in periodicals archive ?
Left main coronary artery stenosis area larger than 50% and left anterior descending branch, left circumflex artery and right coronary artery stenosis area larger than 75% were taken as the evaluation criteria; large branches such as diagonal branch, obtuse marginal branch and right ventricular branch were attributed to left anterior descending branch, left circumflex artery and right coronary artery.
The proximal stenosis of left anterior descending branch was 50% and formed collateral circulation to the distal right coronary artery [Figure 1]b.
Distribution of Bridging in Coronary Artery: Myocardial bridging was observed only in left anterior descending branch of left coronary artery (LAD) with a percentage of 3.
On 38th hospital day, we performed coronary angiography, which demonstrated multiple giant aneurysms with sluggish blood flow on the entire RCA and a stenosis on the proximal anterior descending branch of the left coronary artery.
Just four weeks later, in June 1992, symptoms again returned and an exam showed total occlusion of the right coronary artery, 100 percent blockage in the circumflex branch, and partial blockage in the left anterior descending branch of the left coronary artery.
3) In contrast to the current case, in the 2 cases in the previous report, (3) there was a single artery supplying the anterior wall of the left ventricle, consisting of a left anterior descending branch with an initial intramural course.
Left coronary artery with its left anterior descending branch and left circumflex branch supplies most of the left ventricle which constitutes the majority of the muscle mass of the heart whereas the right coronary artery with its trunk and posterior descending artery branch supplies major portion of the conducting pathway.

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