Abstract
Premature coronary artery disease is a late consequence of mediastinal radiation therapy. Many of these patients have been successfully treated with coronary bypass surgery. A 51-year-old man underwent bypass surgery for severe multivessel coronary disease 18 years following radiation therapy for a posterior mediastinal tumor. Recurrent angina 1 year later occurred following closure of the left internal thoracic artery graft. We suspect that this occurred as a consequence of injury sustained during mediastinal irradiation. Patients who have undergone prior mediastinal radiation therapy may not be assured the excellent long-term patency of the internal thoracic artery graft which has been reported for the general population. Saphenous vein grafts probably should be considered instead.
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