Stage Ta-T1 bladder cancer:: The relationship between findings at first followup cystoscopy and subsequent recurrence and progression

Purpose: We studied the relationship of first cystoscopy findings with recurrence and progression rates in a large, population based series of patients with bladder cancer. Materials and Methods: All 463 patients with an initial diagnosis of stage Ta-T1 bladder cancer in western Sweden in 1987 to 1988 were followed at least 5 years. The 355 patients who were treated with transurethral resection only until repeat cystoscopy or longer were selected for this report. Results: Negative first cystoscopy findings were associated with significantly decreased recurrence and progression rates for all grades, and for stage Ta and T1 tumors. However, some patients with initial high grade carcinoma (WHO 2 to 3) had stage progression despite negative first cystoscopy. On multivariate analyses first cystoscopy findings and papillary urothelial neoplasm of low malignant potential versus grades 1 to 3 but not stage and the number of tumors had prognostic significance for time to recurrence. Only first cystoscopy findings and grade had prognostic significance for time to stage progression. Conclusions: Our data support other groups who recommend a less intense cystoscopy followup schedule in patients with negative cystoscopy findings 3 months after initial transurethral bladder resection. We recommend that patients with initial papillary urothelial neoplasm of low malignant potential and low grade carcinoma (WHO 1) with negative first cystoscopy findings undergo repeat cystoscopy at month 12. In our opinion followup should not be less intense in patients with high grade carcinoma (WHO 2-3), even in those with stage pTa disease.