Acute myocardial infarction due to left circumflex artery
occlusion and significance of ST-segment elevation.
Congenital absence of left circumflex artery
is a very rare coronary artery anomaly and is usually incidentally detected during various cardiac imaging modalities.
Caption: Figure 3: (a) Computed tomography after successful revascularization of the left anterior descending artery; the short and mildly calcified chronic total occlusion of the left circumflex artery
; a stump presents after sending out the small branch (yellow arrows).
This is the first case report on both conventional angiography and the MDCT images of a RCA arising from distal left circumflex artery
The patient did not have CTO of the left circumflex artery
as described in his cardiac catheterizations previously but instead had severe stenosis of his anomalous circumflex artery.
Diagnostic left coronary angiography revealed that the left ventricular apex was supplied by the left circumflex artery
The coronary sinus, which receives drainage from the great, middle, and posterior left ventricular veins, is a low-pressure venous conduit that runs along the atrioventricular groove, which is in close proximity to the left circumflex artery
Jude, Light Lab) was then undertaken from the distal vessel back to the ostium of the left circumflex artery
. This demonstrated that the retained guidewire filament was covered by neointimal hyperplasia over approximately 50% of its length (Figure 2), with evidence of tissue bridges (Figure 3).
According to the proportional length of each vessel segment in the coronary artery tree, segments were graded with different maximum numbers of points: 5 points for the left main stem, 20 for the left anterior descending artery, 10 for the main diagonal branch, 5 for the first septal branch, 20 for the left circumflex artery
, 10 for the obtuse marginal and posterolateral vessels, 20 for the right coronary artery, and 10 for the right posterior descending branch.
Objective: Sinoatrial node (SAN) artery originates from proximal segment of right coronary artery (RCA) or from left circumflex artery
. Sinoatrial node artery artery originating from posterolateral (PL) branch of RCA is very rare.
It travels from the aorta and passes between the pulmonary trunk and the left atrial appendage, under which it divides into left anterior descending artery and the left circumflex artery
. Various anomalies have been described regarding its length, site of origin, and its course.
The SV graft to the left circumflex artery