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European Journal of Cardio-Thoracic Surgery, Vol 9, 202-205, Copyright © 1995 by European Association for Cardio-thoracic Surgery

ARTICLES

Heart diseases following mediastinal irradiation: surgical management

D Reber, DE Birnbaum and P Tollenaere
University Hospital of Regensburg, Clinic for Cardiothoracic Surgery, Germany.

Twelve patients underwent cardiac surgical procedures after having previously received irradiation of the mediastinum for various types of malignancies (Hodgkin's disease, carcinoma of the breast and seminoma). The patients' ages ranged from 39 to 69 years (mean 57 years); nine patients were female and three male. The average length of time from radiation to surgery was 15 years (3-24 years interval). The patients were divided into two groups according to the type of heart disease: Group I included seven patients who developed coronary artery disease (CAD) despite minimal risk factors. Three asymptomatic patients developed sudden myocardial infarction. In two patients the myocardial infarction was complicated (with ventricular septal defect in one and ventricular septal defect plus ventricular aneurysm in the other). All seven patients were surgically managed. Internal thoracic artery (ITA) was used in three patients as a conduit of myocardial revascularization. There were two hospital deaths in this group. The five patients in Group II underwent aortic valve replacement for aortic stenoses. Prior to the irradiation, none of the patients had a documented history of rheumatic fever, bacterial endocartitis, significant murmur, etc. There were no deaths in this group. Intraoperative findings for both groups included thickening and/or fibrosis of the ascending aortic wall, coronary arteries and aortic valve tissue. Epicardium was whitish colored and thickened.

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