[The use of BCG vaccine for preventing recurrences of superficial bladder cancer].

Responses to immunoprophylaxis of superficial bladder cancer in 94 post-transurethral resection patients were analyzed. Once-a-week intravesicular instillations of BCG vaccine in a dose 100 mg diluted in 50 ml of physiological solution were initiated 30 days after transurethral resection. The main course of therapy comprised 8 instillations made outpatiently. Subsequently the patients underwent a maintenance immunoprophylactic course once a month in the same dose (100 mg) for a year since transurethral resection. 3 years after therapy gave rise to the tumor recurrences in 12 (12.8%) out of 94 patients contrary to 37 (43.0%) patients out of 86 patients. BCG is able to prevent recurrences of superficial bladder cancer subjected to transurethral resection in the majority of patients.