New left main trunk reconstruction technique using a flap of the main pulmonary arterial wall.

A new technique is described for ostiumplasty of the left main coronary artery using a flap of the main pulmonary arterial wall. Venous or pericardial patches are conventionally used to enlarge coronary ostial lesions, we used a flap of the pulmonary arterial wall with expectation that it is viable over the long term. This technique seems to surpass conventional coronary artery bypass grafting.