The effect of mediastinal irradiation on cardiac function of patients treated during childhood and adolescence for Hodgkin's disease.

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Abstract
To determine the frequency of cardiac dysfunction in patients treated during childhood or adolescence with mediastinal irradiation for Hodgkin's disease (HD), 28 patients underwent cardiac evaluation 19 to 182 months (median, 90 months) after the completion of radiation therapy. No patient had symptoms of cardiac disease. All were normotensive. All patients had a normal cardiothoracic ratio. There were no abnormalities of voltage or rhythm in the ECGs. The left ventricular end diastolic volume was increased in 19.2% of patients, none of whom had evidence of impaired left ventricular function. The left ventricular ejection fraction (LVEF) was increased in 15.3% of patients. No patient had a decreased LVEF. Pericardial thickening was demonstrated on echocardiograms from 12 of 28 patients (42.9%). Thickening was more frequent among those patients observed for 72 or more months (47.1%; eight of 17) than among those with shorter periods of follow-up (36.4%; four of 11). This study demonstrates that cardiac dys...