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Sears JD, Greven KM, Ferree CR, et al.
In the curative treatment of Hodgkin's disease, many institutions give doses above 40 Gray (Gy). To assess the effectiveness of treating patients with 35 Gy, data from a single institution regarding survival, prognostic factors, patterns of failure, and secondary complications were reviewed.
Data for a total of 172 patients with Hodgkin's disease were reviewed. All patients received definitive irradiation between 1971 and 1994. Median follow-up was 110 months. Kaplan-Meier methods were used to estimate survival, relapse-free survival, and complication rates.
Relapse-free survival was 83% at 5 years and 76% at 10 years. The only two prognostic factors related to relapse-free survival were the stage of disease and the number of sites. The involved infield control rate was 96%. The 10-year estimates of hypothyroidism and second malignancies were 14% and 10%, respectively.
Doses of 35 Gy are adequate for treating Hodgkin's disease. The stage of disease and the number of sites are predictive of relapse-free survival. The incidence of late complications necessitates long term surveillance of these patients.
Rheinische Friedrich- Wilhelms- Universität Bonn