anterior interventricular branch of left coronary artery

(redirected from Left anterior descending)
Also found in: Acronyms.

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 ?
Of these, 75% also had involvement of the ostial left circumflex coronary artery, 25% had involvement of the ostial left anterior descending coronary artery, and no patient had involvement of both arms of the bifurcation.
Coronary angiography showing intraluminal thrombosis in proximal region of left anterior descending coronary artery which was already embolized distal of the artery
The left anterior descending coronary artery had a dissection that extended to midvessel with an 80% minimal diameter stenosis (Figure 2a).
The 63-year-old male patient underwent multivessel off-pump coronary artery bypass surgery at UPMC Presbyterian Hospital on April 5 as part of a national, multi-center trial seeking to evaluate whether the robotic system can be helpful to surgeons and be safely used for the surgical connection of the left internal mammary artery graft to the left anterior descending artery.
Cardiac catheterization during her first day in the hospital disclosed a large left main coronary artery, which contained a narrowing in its most distal portion, a relatively normal left anterior descending artery, and a totally occluded left circumflex coronary artery.
Because of its location near the most important coronary artery branch, the left anterior descending (LAD), we can transfer the lower end of the IMA down to the heart surface to use as a bypass graft to the coronary artery vessels," Dr.
He underwent a coronary arterial bypass graft operation utilizing a left internal mammary artery to the left anterior descending coronary artery, vein grafts to the diagonal and first obtuse marginal branches, and a sequential vein graft to the third obtuse marginal and the posterior descending artery.
The Phase II cardiology trial is being conducted at multiple clinical sites to test the safety and feasibility of MS-325 for the evaluation of atherosclerotic disease involving the major coronary arteries (left main, left anterior descending, left circumflex and right).
Coronary angiography showed stenoses of the mid left anterior descending artery-30%, 1st diagonal artery-50%, distal circumflex artery--50%, and the typical 'milking effect' for myocardial bridge in right coronary artery (RCA), causing 70% stenosis at systole (Video 1.
Cardiac catheterization showed 4-vessel coronary artery disease, including an occluded left anterior descending artery, 90% diameter narrowing of the first diagonal branch, a 99% stenotic circumflex marginal branch, and an occluded right coronary artery.

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