A comparative study of cytostatic intravesical instillation for superficial bladder tumor

Ahn, Jin Sub; Park, Young Kyung

Abstract

A total or 56 patients who underwent TUR-BT for superficial (stages O and A) bladder tumors received various chemoprophylactic treatment to prevent recurrence. 16 patients underwent resection only (Group I). Of the 56 patients treated with chemoprophylactic agents 18 patients were given thio-tepa at weekly interval for 8 weeks (Group 2). 20 patients were given adriamycin. weekly one time for 6 weeks (Group 3). 16 patients were given mitomycin C, weekly one time for 8 weeks (Group 4). All chemoprophylactic groups were followed by monthly one time for 1 year and the dosages of the used agents (thio-tepa, adriamycin and mitomycin C) were 60 mg/l dosage, 50 mg/l dosage and 30 ml/l dosage, respectively. During follow-up period (mean duration; 19.8-25. 2 months), 1umor recurred 56.2 % of group 1 patients, 27.7 % of group 2 patients, 25.0% of group 3 patients, 18.9 % of group 4 patients and 22.2% of total patients. Therefore three drugs were effective to decrease the recurrence rate of superficial bladder tumor and no significant differences in recurrence rate were noticed among drugs. Toxicity of the three agents were negligibly minimal except 2 patients who developed severe gross hematuria after adriamycin instillation.