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The Place of Transanal Endoscopic Surgery in the Treatment of Rectourethral Fistula.
Urology 2018 January
OBJECTIVE: To assess the role of transanal endoscopic operation (TEO) or transanal endoscopic microsurgery (TEM) in rectourethral fistulas (RUF). RUF may appear after radical prostatectomy. Their treatment represents a challenge; many therapies have been proposed, from conservative to aggressive surgical approaches. Transanal endoscopic surgery (TEO or TEM) is a minimally invasive technique to access the site of the RUF to perform repair.
MATERIALS AND METHODS: This is an observational study with prospective data collection, conducted between September 2006 and December 2015. All patients were diagnosed with RUF following management of prostate cancer. Conservative treatment was administered in the form of urinary and fecal diversion with cystotomy and terminal colostomy, to achieve total urinary and fecal exclusion. If the fistula persisted, it was treated by TEO or TEM, with or without biological mesh interposition. If this failed, gracilis muscle was applied as salvage therapy.
RESULTS: Ten patients were diagnosed with RUF. In 1 patient (1 of 10), the fistula healed with bladder catheterization alone. In another patient (1 of 9), it resolved after total urinary and fecal exclusion. Eight patients underwent repair by TEO or TEM, 4 with biological mesh interposition; all 4 presented recurrence. In the other 4 patients treated via TEO or TEM, 2 had early recurrence, whereas the others had healed at follow-up visits after 4-6 months (2 of 8)-a success rate of 25%. The 6 patients who recurred were treated with gracilis muscle interposition via a transperineal approach.
CONCLUSION: The low rate of positive results obtained by TEO or TEM argues against its use as technique of choice in RUF, and against the use of biological meshes.
MATERIALS AND METHODS: This is an observational study with prospective data collection, conducted between September 2006 and December 2015. All patients were diagnosed with RUF following management of prostate cancer. Conservative treatment was administered in the form of urinary and fecal diversion with cystotomy and terminal colostomy, to achieve total urinary and fecal exclusion. If the fistula persisted, it was treated by TEO or TEM, with or without biological mesh interposition. If this failed, gracilis muscle was applied as salvage therapy.
RESULTS: Ten patients were diagnosed with RUF. In 1 patient (1 of 10), the fistula healed with bladder catheterization alone. In another patient (1 of 9), it resolved after total urinary and fecal exclusion. Eight patients underwent repair by TEO or TEM, 4 with biological mesh interposition; all 4 presented recurrence. In the other 4 patients treated via TEO or TEM, 2 had early recurrence, whereas the others had healed at follow-up visits after 4-6 months (2 of 8)-a success rate of 25%. The 6 patients who recurred were treated with gracilis muscle interposition via a transperineal approach.
CONCLUSION: The low rate of positive results obtained by TEO or TEM argues against its use as technique of choice in RUF, and against the use of biological meshes.
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