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JOURNAL ARTICLE

Treatment-related morbidity in phase III RTOG studies of extended-field irradiation for carcinoma of the prostate

M V Pilepich, J Krall, F W George, S O Asbell, H D Plenk, R J Johnson, J Stetz, M Zinninger, B J Walz
International Journal of Radiation Oncology, Biology, Physics 1984, 10 (10): 1861-7
6386761
The incidence, severity, time of onset, and clinical course of complications of treatment have been reviewed in the RTOG studies of extended field irradiation in carcinoma of the prostate. A total of 526 patients, entered between 1976 and 1980 and followed for a minimum of 18 months, comprised the study population. In most instances of treatment-related morbidity, the symptoms were recorded during the first several months to 1 year following completion of treatment. Late occurrences, however, were not uncommon in certain types of radiation-produced injuries, such as proctitis, hematuria, and urethral strictures. Resolution of symptoms has been observed in a large proportion of patients including those with late occurrences of treatment-related morbidity, although the probability and the pattern of resolution differed considerably from one type of morbidity to another. Symptoms of cystitis are more likely to abate than those of proctitis. In patients who develop symptoms of proctitis the probability of persistence of symptoms beyond the second year following occurrence has been estimated at 20%-30%. Hematuria and symptoms secondary to urethral strictures seem to be even more likely to recur or persist, while genital and leg edema remain chronic in the majority of patients.

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