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Surgical angioplasty and unroofing technique for intramural coronary anomaly.

A malign intramural course of the left main coronary artery is a rare anatomical anomaly. Surgical repair is mandatory since the condition is associated with myocardial ischemic syndromes and sudden death. Unroofing the intramural part and reconstructing a neo-ostium is challenging if the neo-ostium is immediately adjacent to the intercoronary commissure as there is a risk of narrowing the newly created ostium. We report a case in which we performed a surgical angioplasty of the left main coronary artery in combination with unroofing of the intramural section and resuspension of the intercoronary commissure.