Fecal incontinence after radical perineal prostatectomy: a prospective study.

Objectives: To assess, in a prospective study, the incidence of fecal incontinence after radical perineal prostatectomy.

Methods: Bowel symptoms were evaluated with questionnaires mailed to 132 patients preoperatively and 6 months postoperatively, and annually thereafter. All patients had undergone extrafascial perineal prostatectomy for Stage cT1-cT3N0M0 prostate cancer. The data of 116 patients (88%), who answered at least the preoperative and 12-month questionnaires, were analyzed. Reduced sensibility, reduced discrimination, urgency, or stool smearing were symptoms indicative of fecal incontinence. Patients with one symptom of fecal incontinence were evaluated further with a structured telephone interview.

Results: Daily stool smearing was reported preoperatively by 4% of the patients. Two symptoms related to fecal incontinence were present preoperatively in 6% of the patients. At 12 months postoperatively, 15 patients (13%) reported at least two symptoms of fecal incontinence. The structured telephone interview revealed that 6 of these 15 patients had symptoms of fecal incontinence that were related to the perineal prostatectomy; 9 patients had newly developed symptoms not related to surgery or symptoms due to tumor recurrence or radiotherapy. Patients with the presence of at least one symptom of fecal incontinence before surgery had an almost fourfold increased risk of developing at least two symptoms of fecal incontinence postoperatively compared with patients without any symptom of fecal incontinence.

Conclusions: Significant fecal incontinence after radical extrafascial perineal prostatectomy is a rare event. The results of questionnaires should be supplemented by additional interviews to obviate wrong interpretations.