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Laparoscopic-Assisted Anorectoplasty for Rectovestibular Fistula: A Comparison Study with Anterior Sagittal AnorectoplastyFunding This work was supported by the Pediatric Medical Coordinated Development Center of Beijing Hospitals Authority, No. XTZD20180302 and Fundamental Research Funds for the Central University, No. 3332019166.
Background Posterior or anterior sagittal anorectoplasty (ASARP) is the mainstream for correcting rectovestibular fistula (RVF). However, the intermediate RVF has the potential risk of wound complications when applying ASARP due to its high rectal pouch, long fistula tract, and difficulty separating the rectum and vagina. We developed laparoscopic-assisted anorectoplasty (LAARP) for surgical correction of RVF, which has acceptable preliminary outcomes. The purpose of this study is to evaluate the safety and efficacy of LAARP in comparison with ASARP for patients with RVF.
Materials and Methods Twenty-five patients with RVF who underwent LAARP between October 2017 and December 2020 were retrospectively reviewed. The outcomes were compared with 43 patients who underwent ASARP between April 2015 and August 2018. The age, weight at operation, sacral ratio, operative time, and postoperative hospital stay were evaluated. The results were assessed for complications, perineum appearance, and bowel function.
Results The two groups were comparable in terms of demographics. The median operative time of the LAARP group was significantly longer than that of the ASARP group (113 vs. 95 minutes; p = 0.015). The mean length of the resected rectum in the LAARP group was also longer than that in the ASARP group (6.75 ± 5.07 vs. 3.31 ± 3.06 cm; p = 0.001). Compared with the LAARP group, complications in the ASARP group were more frequent (4.0 vs. 27.9%, p = 0.036). No intraoperative or postoperative wound-related complications occurred in the LAARP group. However, in the ASARP group, one patient had an intraoperative vaginal injury and four had postoperative anastomosis-related complications. The incidence of redo operation in the ASARP group was significantly higher than that in the LAARP group (p = 0.000). Cosmetic satisfaction was higher in the LAARP group (96.0 vs. 76.7%; p < 0.05). In terms of voluntary bowel movement, soiling, and constipation, the LAARP group had similar results compare with the ASARP group.
Conclusion The LAARP technique has shown several unique strengths in treating intermediate type RVF, including lower risks of complications, and minimal muscular injury, with a comparable bowel function.
Keywordsanorectal malformation - rectovestibular fistula - laparoscopic-assisted anorectoplasty - anterior sagittal anorectoplasty
Research Involving Human Participants
Ethical approval was obtained from the Ethics Committee of the Capital Institute of Pediatrics (No.: SHERLL 2015024).
Written informed consents were obtained from the parents before surgery.
Received: 16 June 2021
Accepted: 01 October 2021
01 December 2021 (online)
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