Aneurysms of the sinuses of Valsalva
(ASV) are thin-walled outpouchings, most commonly involving the right or non-coronary sinuses.
The coronary arteries arise from two of the three aortic sinuses or sinuses of Valsalva
present at the root of ascending aorta.
We found nine cases of RCA + LCA high location, and they can divide into two group: One group is RCA and LCA origin from the ascending aorta above the sinuses of Valsalva
separately without abnormal distributing [Figure 2], we classified it to "benign" group; another group is RCA and LCA origin from the ascending aorta above the commissural or the left sinus of Valsalva together, RCA passed between the aorta and PA before reaching the right atrioventricular groove [Figure 3], ostial occlusion due to aortic expansion during exercise may result in myocardial ischemia, so we classified it to "potentially serious" group.
Aortic root geometry: pattern of differences between leaflets and sinuses of Valsalva
These aneurysm formations may involve both the ascending aorta as well as the sinuses of Valsalva
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The coronary arteries arise from the aortic sinuses, also called the sinuses of Valsalva