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Left main coronary artery disease (LMCD) is mainly caused by atherosclerotic stenosis. However, obstructed left coronary cusp (LCC) can be a cause of LMCD as well as a cause of severe aortic regurgitation rarely.
A 62 year old woman with symptomatic severe aortic regurgitation was referred for aortic valve replacement. Preoperative coronary angiography …