Extreme technical accuracy is crucial in coronary artery surgery. Although late graft patency depends mostly upon the patient's own biochemical status in chronic ischemic patients who have undergone elective surgery, graft disease is certainly promoted by an inaccurate technique or by careless arterial harvesting, which may cause both intimal lesions and anastomotic strictures. We describe a technique of internal thoracic-coronary artery anastomosis that fully prevents contact between vessels and surgical instruments. In order to enable the suturing of a fully dilated vessel, intracoronary papaverine is injected into the clamped aortic root while the heart is still beating and before systemic cooling begins. The suturing technique applies some microvascular principles, the chief being a high number of stitches incorporating the least amount of tissue, to avoid bulk.
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