Long-term results of selective partial cystectomy for invasive urothelial bladder carcinoma.

OBJECTIVES We reviewed our experience with partial cystectomy to assess local control and survival rates, and to identify pathologic predictors for recurrence. METHODS From 1995 to 2005, 25 patients with urothelial carcinoma underwent partial cystectomy with curative intent. As protocol, patients with primary solitary muscle-invasive bladder tumors underwent preoperative localized radiotherapy, administration of a single dose of intravesical chemotherapy at the time of partial cystectomy, and postoperative intravesical Bacillus Calmette-Guérin therapy. We reviewed clinical and pathologic data to identify variables associated with disease recurrence. RESULTS We analyzed data from 25 patient records meeting review criteria (72% male, mean age 65.1 +/- 9.8 years). At time of transurethral resection of a bladder tumor (TURBT), all had a solitary primary T2 (68%) or T1HG (32%) lesion with no evidence of carcinoma in situ. At follow-up (mean 45.3 +/- 30.7 months), 5-year recurrence-free, disease-specific, and overall survival rates were 64%, 84%, and 70%, respectively. At a mean of 18.0 +/- 15.6 months, 8% of patients experienced intravesical non-muscle-invasive tumor recurrences and were treated with TURBT and intravesical chemotherapy. Twenty percent recurred with locally advanced tumors or visceral metastasis and were treated with systemic chemotherapy, local resection or cystectomy, or both. On univariate analysis, only tumor size at time of partial cystectomy (P = .03) was significantly associated with tumor recurrence. CONCLUSIONS Partial cystectomy offers adequate control of localized invasive urothelial carcinoma in carefully selected patients with solitary primary tumors. Lifelong follow-up with cystoscopy and abdominal imaging is recommended to detect recurrence.