Conformal Radiotherapy for Prostate Cancer&Longer Duration of Acute Genitourinary Toxicity in Patients with Prior History of Invasive Urological Procedure
2001
The incidence and predictors of acute toxicity were evaluated in patients treated with three-dimensional conformal radiotherapy (3D-CRT) for localized prostate cancer. Between December 1997 and November 1999, 116 patients with T1-T3 prostatic carcinoma were enrolled in the study. Ninety patients were treated with 70 Gy and 26 patients with T3 tumors received 74 Gy. Of the 116 patients 42 (36.2%) had a prior history of invasive urological procedure (IUP) (transurethral resection of the prostate or transvesical prostatectomy for benign prostatic hyperplasia). Acute gastrointestinal (GI) and genitourinary (GU) symptoms were graded according to the EORTC/RTOG scoring system. Toxicity duration after the completion of 3D-CRT was recorded. The majority of patients experienced only mild or no (Grade 1) acute toxicities. Medications for GI and GU symptoms (Grade 2) were required by 28.4% and 12.9% of patients, respectively. Only one case of Grade 3 GI toxicity (0.9%) was observed. Seven patients (6.1%) experienced...
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