Objective: To evaluate the long-term survival following brachytherapy and following cystectomy of patients with invasive bladder cancer treated in our institution.
Patients and methods: Between 1988 and 2000 108 patients with solitary, organ confined T1-T2 invasive bladder cancer of < or = 5 cm were treated with a transurethral resection, and a course of external beam radiotherapy (30 Gy) followed by 40 Gy brachytherapy. The overall and disease specific survival rates of these patients are compared with those of 77 patients with T1-T2 invasive bladder cancer treated with cystectomy between 1988-2003.
Results: The 5/10 year overall survival rates were 62%/50% after brachytherapy and 67%/58% after cystectomy (p = 0.67). The 5/10 year disease specific survival rates were 73%/67% after brachytherapy and 72%/72% after cystectomy (p = 0.28). When adjusted for age, multiplicity, T-stage, N-stage and grade, the 5/10 year overall survival rates were 65%/53% after brachytherapy and 62%/51% after cystectomy, respectively. The adjusted disease specific survival rates were 75%/70% after brachytherapy and 66%/66% after cystectomy.
Conclusions: This study does not provide evidence regarding survival against the use of bladder preservation with brachytherapy for patients with solitary, T1-T2 invasive bladder cancer of < or = 5 cm diameter, seeking bladder-sparing alternatives to radical cystectomy.