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Early postoperative angiographic evaluation reveals that a notable proportion of patients (33 out of 200) develop stenosis or thrombosis of the vein graft following aortocoronary bypass grafting.
In a group of 200 patients who underwent aortocoronary bypass grafts at the Montreal Heart Institute, 33 were found to have stenosis or thrombosis of the vein graft in the early postoperative angiographic evaluation.
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Claude M. Grondin (1971) studied this question.
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