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. 1980 May;61(5):882-7.
doi: 10.1161/01.cir.61.5.882.

Myocardial perfusion as an indicator of graft patency after coronary artery bypass surgery

Myocardial perfusion as an indicator of graft patency after coronary artery bypass surgery

A J Kolibash et al. Circulation. 1980 May.

Abstract

Stress and resting myocardial perfusion were assessed in 38 patients who received 96 grafts. Stress perfusion was evaluated with thallium-201 and resting myocardial blood flow distribution with radiolabeled particles. When both stress and rest perfusion were normal, graft patency was 82% (51 of 62 grafts). Graft patency was also high (81%, 13 of 16) in areas where stress perfusion abnormalities resolved or become less apparent at rest. However, when stress perfusion defects remained unchanged at rest, the graft was likely to be occluded (73%, 11 of 15). Maintenance of normal rest perfusion or improvement of rest perfusion postoperatively was also associated with a high graft patency rate (80%, 35 of 44), whereas the development of new rest perfusion defects postoperatively implied graft occlusion (86%, six of seven).

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