Pubovesical fistula: a rare complication after treatment of prostate cancer.

Objective: To characterize the clinicopathologic features of patients who developed pubovesical fistula (PVF) after treatment of prostate cancer and to identify some possible methods of reducing the incidence of this rare complication for which no well-established guidelines exist.

Methods: We identified men at 2 centers who presented with PVF after prostate cancer treatment from January 2000 to December 2010. Prostate cancer was treated with radiotherapy (RT) or radical prostatectomy, or both. Patients with bladder neck contracture (BNC) received endoscopic treatment. The demographic and clinical data were collected.

Results: Of the 12 patients who presented with PVF, the treatment of prostate cancer was external beam RT in 8 (5 of whom underwent subsequent salvage radical prostatectomy) and radical prostatectomy (followed by salvage RT) in 4. All patients developed BNC requiring endoscopic treatment. The median interval between primary endoscopic treatment of BNC and the development of PVF was 35.9 months (range 0.6 to 97). The most common presenting symptom was suprapubic or groin pain. Of the 12 patients, 10 ultimately required cystectomy with urinary diversion.

Conclusion: The treatment of prostate cancer with RT followed by the development of BNC requiring endoscopic intervention appears to be associated with PVF development Despite conservative measures, patients who developed PVF often required cystectomy with urinary diversion. To avoid PVF, care should be taken during endoscopic intervention for BNC in patients who have received RT for prostate cancer. PVF should be on the differential diagnosis of patients with a history of RT and BNC who develop pubic pain or recurrent urinary tract infection.