Surgical Strategy for Rectovaginal Fistula After Colorectal Anastomosis at a High-volume Cancer Center According to Image Type and Colonoscopy Findings

Minimally invasive endoscopic repair of rectovaginal fistula

BACKGROUND

Surgical techniques for repair of rectovaginal fistula (RVF) have been continually developed, but the ideal procedure remains unclear. Endoscopic repair is a novel and minimally invasive technique for RVF repair with increasing reporting.

AIM

To review the current applications and preliminary outcomes of this technique for RVF repair, aiming to give surgeons an alternative in clinical practice.

METHODS

Available articles were searched according to the search strategy. And the sample size, fistula etiology, fistula type, endoscopic repair approaches, operative time and hospital stay, follow-up period, complication and life quality assessment were selected for recording and further analysis.

RESULTS

A total of 11 articles were eventually identified, involving 71 patients with RVFs who had undergone endoscopic repair. The principal causes of RVFs were surgery (n = 51, 71.8%), followed by obstetrics (n = 7, 9.8%), inflammatory bowel disease (n = 5, 7.0%), congenital (n = 3, 4.2%), trauma (n = 2, 2.8%), radiation (n = 1, 1.4%), and in two patients, the cause was unclear. Most fistulas were in a mid or low position. Several endoscopic repair methods were included, namely transanal endoscopic microsurgery, endoscopic clipping, and endoscopic stenting. Most patients underwent > 1-year follow-up, and the success rate was 40%-93%, and all cases reported successful closure. Few complications were mentioned, while postoperative quality of life assessment was only mentioned in one study.

CONCLUSION

In conclusion, endoscopic repair of RVF is novel, minimally invasive and promising with acceptable preliminary effectiveness. Given its unique advantages, endoscopic repair can be an alternative technique for surgeons.

Rectovaginal fistula after low anterior resection: Prevention and management

Rectovaginal fistula after low anterior resection for rectal malignancy is one of the most challenging postoperative complications because it is difficult to treat and may complicate plans of adjuvant therapy. This problematic complication could lead to multiple operations, stoma formation, sexual dysfunction, fecal incontinence and psychosocial ramifications. This review comprehensively covers an overview of its incidence, risk factors, presentation and evaluation, management (ranging from conservative measures, endoscopic treatment and local tissue repair to radical resection and redo anastomosis) and treatment outcomes of rectovaginal fistula after low anterior resection. Notably, these therapeutic options and outcomes are influenced by several factors, including the size and location of the fistula, tumor clearance, cancer staging, quality of colorectal anastomosis and surrounding tissue, presence of diverting stoma, previous attempted repair, and the surgeon’s experience. Also, strategies to prevent rectovaginal fistula after low anterior resection are presented with illustrations. Finally, a decision-making algorithm for managing this complication is proposed.

Recto-vaginal fistulas: A case series

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Falandry and Martius’ techniques were used firstly for vesico-vaginal fistulas with satisfying long-term functional results.

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The same techniques are feasible and safe for rectovaginal fistula repair.

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In this case series, patients had an improvement of their self-image and health-related quality of life.

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Temporary colostomy is recommended before this reconstructive surgery.

Introduction

Rectovaginal fistula (RVF) is defined as an abnormal communication between the anterior wall of the rectum and the posterior wall of the vagina. Many surgical techniques have been described in the treatment of RVF. However, none has proved its superiority. The aim of the study was to evaluate the functional results of surgical treatment of RVF using Martius and Falandry techniques in order to assess the feasibility and the efficacy of these techniques which were first described for vesico-vaginal fistulas.

Methods

The study was a retrospective case series conducted in a single centre: Department of general surgery at Ibn Sina University Hospital in Rabat. We included patients with rectovaginal fistula consecutively recruited from 2011 to 2014. 10 patients developed RVF after surgery for rectal cancer (9 cases), uterine cancer (1 case). One patient had RVF for ano-rectal malformation. Colostomy was performed before the treatment of fistula in 9 cases (82 %). They underwent surgical treatment using Falandry (8 patients) and Martius techniques (3 patients) performed by an experienced urologist surgeon.

Results

No postoperative complications were recorded. Time to discharge was postoperative day 3–4. There was a complete disappearance of RVF in 8 patients (72.7 % of cases), relapse in 2 cases (18 %), and failure in one case (9%). The average follow-up was 12.6 +/-10 months. Functionally, no long-term cases of fecal incontinence or dyspareunia were noted.

Conclusion

The choice of surgical technique in the treatment of RVF remains difficult because of poor literature data and absence of consensus. RVF repair results either by Martius or Falandry techniques are encouraging with low morbidity.