The largest anterior ventricular branch is referred to as the diagonal artery
and may be doubled (Drake et al.
Coronarography revealed an occlusion in medial segment of the left anterior descending coronary artery (RIA), stenosis of the first diagonal artery
(D1) and 95% stenosis of the proximal segment of the dominant right coronary artery (ACD).
We did not perform this percutaneous intervention because the aneurysm contained the ostium of the first diagonal artery
and the patient had multivessel disease.
Among them, CE was performed on left anterior descending artery in 11 cases, on right coronary artery in 29 cases, on diagonal artery
in 3 cases, on intermediate artery in 2 cases, on obtuse marginal artery in 5 cases.
The left diagonal artery
was located into the myocardium for a distance of 1cm and the depth was 0.
The differentiation is relatively straightforward, since a diagonal artery
does not enter the anterior interventricular groove (Figure 13).
The anatomic abnormalities found in coronary arteries were: left trunk absence, (4); two right coronary arteries with an individual ostium each, (1); a circumflex artery originating from the right sinus, (2) and retrocardiac trajectory, (1); duplication of vessels, (6); anterior origin of the right coronary artery, (1); a right coronary artery originating from the left sinus of Valsalva and interarterial trajectory, (4); intramyocardial bridge, (3); retroaortic exit from the circumflex artery, (1); exit of the three vessels from the right coronary sinus, (1); a high right coronary artery ostium, (1); an arteriovenous fistula, (1); and a mammary artery branch from the first diagonal artery
Between January 2005 and November 2005, within 11-month period, 135 patients (between 45 and 55 years of age) undergoing elective primary coronary artery bypass surgery (CABG) for multivessel coronary artery disease including a diagonal artery
or a proximal obtuse marginal artery as target vessels for RITA grafting were included in this prospective clinical randomized study.
An SVG to the left side is attached distally to the LAD artery, diagonal artery
, left circumflex (LCx) artery, or the obtuse marginal (OM) arteries, by traversing anteriorly and superiorly to the right ventricular outflow tract or main pulmonary artery.
In all the specimens where the trigone was present, the diagonal artery
crossed inside it.
After VVI mode pacemaker implantation, balloon angioplasty was performed to the diagonal artery
and stent was implanted to the LAD.
Culprit lesion was defined as proximal left anterior descending artery (LAD) lesion if it was between LAD ostium and first septal or diagonal artery
, distal LAD lesion if it was distal to the first septal or diagonal artery