Catheter-induced bilateral coronary ostium dissection in a patient with long-term steroid therapy.

Catheter-induced coronary dissection is a very rare and serious complication. We report a case of a 44-year-old man with catheter-induced bilateral coronary dissection that occurred during diagnostic coronary angiography for angina. The coronary dissection was successfully treated by stenting at the left main trunk, the left anterior descending artery, and the right coronary ostium. The patient had been maintained on long-term steroid therapy for nephrotic syndrome. The effect of long-term steroid therapy on bilateral coronary dissection is worthy of discussion.