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  • Title: Urinary and rectal complications of contemporary permanent transperineal brachytherapy for prostate carcinoma with or without external beam radiation therapy.
    Author: Sarosdy MF.
    Journal: Cancer; 2004 Aug 15; 101(4):754-60. PubMed ID: 15305406.
    Abstract:
    BACKGROUND: Prostate brachytherapy is increasingly used to treat prostate carcinoma, alone or combined (combination therapy) with external beam radiation therapy (EBRT). This report cites the frequency and nature of urinary and rectal complications requiring unplanned interventions after contemporary brachytherapy with or without EBRT. METHODS: A total of 177 consecutive patients underwent either brachytherapy (100 patients [56.5%]) or combination therapy (77 patients [43.5%]) for clinical T1-2 prostate carcinoma between July 1998 and July 2000. All the patients were analyzed with regard to disease characteristics, treatment details, and complications requiring unplanned interventions in up to 48 months of follow-up. RESULTS: Catheter drainage for urinary retention was required for a median of 55 days (range, 3-330 days) in 36 patients (20%), including 24% after brachytherapy and 16% after combination therapy. Transurethral resection of the prostate (TURP) was performed at a median of 12 months (range, 8-18 months) after implantation in 5% of patients after brachytherapy and 14.5% of patients after combination therapy (P = 0.029). Colonoscopy with or without fulguration for rectal bleeding was performed in 37 of 158 patients (97 in the brachytherapy group and 61 in the combination therapy group) (23.4%) at a median of 17 months (range, 4-45 months), including 15 patients (15.5%) after brachytherapy and 22 patients (36%) after combination therapy (P = 0.002). Combination therapy resulted in fecal diversion in 6.6% of patients (P = 0.021), urinary diversion in 3.2% of patients (P = 0.148), and clean intermittent self-catheterization for recurrent stricture after multiple TURPs in 4.9% of patients (P = 0.055), none of which occurred after brachytherapy. Overall, 20.6% of patients underwent TURP or colonoscopy after brachytherapy, whereas 44.2% underwent those or more extensive unplanned procedures after combination therapy (P = 0.001). CONCLUSIONS: Complications requiring unplanned procedures may occur after brachytherapy, and may be increased significantly after brachytherapy combined with EBRT. These data reinforce the concept that quality assurance and technique are important in prostate brachytherapy, but, even when these are in place, complications can occur, especially when EBRT is added to brachytherapy.
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