Closure of Coronary Arteriotomy in the Dog by Means of an Autogenous Arterial Patch

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Abstract
A simple technique of application of a patch graft to a coronary arteriotomy without using a cardiopulmonary bypass is described. Twelve dogs were subjected to this procedure, the circumflex coronary artery being used in eight, and the left anterior descending coronary artery in four. A 66 per cent patency of the segment was obtained. In one dog, a coronary arteriogram showed a patent segment six months later. Histological study revealed some intimal thickening of the patch, as well as of the host artery. Gross myocardial infarction was observed in those with occluded segments.

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