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  • Title: A randomized controlled trial of short-term versus long-term prophylactic intravesical instillation chemotherapy for recurrence after transurethral resection of Ta/T1 transitional cell carcinoma of the bladder.
    Author: Koga H, Kuroiwa K, Yamaguchi A, Osada Y, Tsuneyoshi M, Naito S.
    Journal: J Urol; 2004 Jan; 171(1):153-7. PubMed ID: 14665865.
    Abstract:
    PURPOSE: In a prospective randomized controlled study, we investigated the optimal schedule for intravesical instillation of epirubicin for maximizing its effect on prophylaxis and disease progression after transurethral resection of newly diagnosed Ta/T1 bladder cancer. MATERIALS AND METHODS: The patients were instilled with epirubicin (30 mg/30 ml in normal saline) within 24 hours after transurethral resection and then randomized into 2 groups after a definite histopathological diagnosis of Ta/T1 bladder cancer. One group of 77 patients received 19 intravesical instillations of epirubicin in the year after transurethral resection (group 1). The second group of 73 patients received 9 intravesical instillations of epirubicin during the 3 months after transurethral resection (group 2). Nonrecurrence rates and toxicity were compared. RESULTS: In the followup period, 10 group 1 patients (13.0%) and 23 group 2 patients (31.5%) had recurrent disease. The 3-year nonrecurrence rate was 85.2% in group 1, whereas it was 63.9% in group 2. The nonrecurrence rate of group 1 was significantly higher than that of group 2 throughout the observation period (p = 0.005). The incidence and severity of toxicity were not significantly different between the 2 groups. CONCLUSIONS: Our study indicates that long-term instillation of epirubicin is more effective than short-term instillation in preventing recurrence after transurethral resection of Ta/T1 bladder cancer.
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