Clinical Scorecard: Approach to Managing Recto-Urethral Fistulas in Patients Undergoing Robot-Assisted Radical Prostatectomy: Insights on the York–Mason Technique
At a Glance
Category
Detail
Condition
Recto-urethral fistula (RUF) following robot-assisted radical prostatectomy (RARP)
Key Mechanisms
Iatrogenic injury causing an abnormal connection between rectum and urethra or bladder, often from surgical trauma or radiation
Target Population
Men undergoing RARP for clinically localized prostate cancer, including those with prior radiotherapy
Care Setting
Specialized urology centers with surgical expertise in fistula repair
Key Highlights
RUF incidence after primary RARP is low (up to 0.53%) but higher after salvage prostatectomy (2–16%).
Conservative management with prolonged urethral catheterization is first-line for non-radiation RUF; surgery indicated if no closure after 3 months.
The York–Mason posterior transsphincteric approach offers direct access and precise layered closure with favorable outcomes.
Guideline-Based Recommendations
Diagnosis
Suspect RUF in patients with fecaluria, pneumaturia, or urinary drainage per anus.
Confirm diagnosis via cystoscopy, cystogram, and proctoscopy.
Assess fistula location by rectal examination and endoscopy.
Management
Initial conservative management with prolonged transurethral Foley catheterization for at least 3 months in non-radiation RUF.
Surgical intervention indicated if fistula persists beyond 3 months or shows epithelialization on cystoscopy.
Perform diverting colostomy prior to or concurrent with fistula repair.
Use York–Mason technique for surgical repair to access fistula through healthy tissue and allow precise sphincter closure.
Colostomy reversal considered after minimum 3 months post successful repair confirmation.
Monitoring & Follow-up
Regular hospital visits for catheter changes and symptom monitoring during conservative management.
Repeat cystoscopy and cystogram after 3 months to assess fistula closure.
Assess bowel function post colostomy reversal using Low Anterior Resection Syndrome (LARS) score.
Risks
Higher risk of RUF in patients with prior radiotherapy or salvage prostatectomy.
Radiation-induced RUFs rarely close spontaneously and require prompt surgical repair.
Persistent fistula increases morbidity, hospital stay, healthcare costs, and impairs quality of life.
Patient & Prescribing Data
Prostate cancer patients undergoing RARP who develop RUF, including those with and without prior radiotherapy.
Conservative catheterization may allow spontaneous closure in non-radiation cases; surgical repair via York–Mason technique is effective when conservative treatment fails.
Clinical Best Practices
Early recognition of RUF symptoms and prompt diagnostic evaluation with cystoscopy and proctoscopy.
Adopt a stepwise approach starting with conservative management in non-radiated patients.
Use diverting colostomy to protect repair site and improve healing outcomes.
Employ the York–Mason transsphincteric approach for direct fistula access and layered sphincter closure.
Monitor functional outcomes including bowel function post colostomy reversal using validated scoring systems like LARS.
by Sophia H. van der Graaf, Esther M. K. Wit, Geerard L. Beets, Brechtje A. Grotenhuis, Ton A. Roeleveld, Jakko A. Nieuwenhuijzen, André N. Vis, Pim J. van Leeuwen, Henk G. van der Poel
