Bilateral internal thoracic artery grafting during David procedure complicated with coronary insufficiency.

ABSTRACT

A 47-year-old woman diagnosed with Marfan syndrome underwent valve-sparing aortic root replacement for aortic regurgitation and annulo-aortic ectasia. Her cardiac function was normal. Preoperative coronary angiography did not demonstrate any stenosis. The David reimplantation procedure with a 28-mm Valsalva graft was performed. Both coronary orifices were reconstructed in a button fashion with Teflon felt reinforcement. After aortic declamping, marked bleeding was noted from the left coronary button, requiring a second pump run. Graft interposition using the great saphenous vein was performed for left coronary artery reconstruction. The reconstructed right coronary button was also damaged due to the fragile tissue, and interposed by the vein graft in the same fashion. After the aorta was declamped, the global left ventricular wall motion was significantly impaired, and did not improve with time. Coronary insufficiency was considered. Beating-heart coronary artery bypass grafting with the in-situ bilateral internal thoracic arteries was performed. After revascularization, the left ventricular function was improved. In certain emergent situations compromised with coronary insufficiency, this procedure could be an option to revascularize the coronary arteries.