Emergency stenting of unprotected left main coronary artery after acute catheter-induced occlusive dissection.

Left main coronary artery dissection occurs very rarely during selective coronary angiography, but it generally progresses to complete coronary occlusion. The traditional treatment of occlusive dissection of the unprotected left main coronary artery has been surgical. Percutaneous treatment has been sporadic and controversial. We report a case of iatrogenic occlusive dissection of the unprotected left main coronary artery during diagnostic coronary angiography, followed by successful stenting of the lesion.