[The value of differentiated transurethral resection in primary superficial bladder cancer]

In a prospective study the efficacy of transurethral resection (n = 60) and differentiated resection (n = 66) in primary superficial bladder cancers was evaluated for persistent tumors and recurrences. At the control examination after 8 weeks an persistent tumor was found in 18.3% of cases after simple resection and in 9.1% after differentiated resection. The frequency of recurrences after a follow-up period of 3 years was 40% after simple resection and 27% after differentiated resection. The necessity of a third resection for complete removal of the tumor was shown in 12.1% following differentiated resection. Understaging or undergrading was detected in 3% with this method.