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J Pediatr Surg. 2010 Sep;45(9):1837-42. doi: 10.1016/j.jpedsurg.2010.02.064.

Laparoscopic treatment of rectovaginal fistulas. Feasibility, technical details, and functional results of a rare anorectal malformation.

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  • 1JP Garrahan Children's Hospital, Buenos Aires, Adrogue 1846, Argentina. mbailez@speedy.com.ar

Abstract

INTRODUCTION:

Rectovaginal fistulas are a rare variety of anorectal malformations. Eight patients with this anomaly among 420 children with anorectal malformations were treated in our center. We used a laparoscopic approach in 5 of the children. The aim of this study is to define the feasibility and technical details of laparoscopy in the treatment of these patients as compared with those treated by posterior sagittal anorectoplasty (PSARP) and to evaluate the preliminary results.

METHODS:

Three patients were treated with a PSARP starting February 2000 (group 1 [GI]). The laparoscopic approach (laparoscopic treatment [LT]) was used in the next 5 girls starting in November 2002 (group 2 [G2]). All patients were operated on by the authors. In LT cases, we used 3 ports. The rectum was dissected laparoscopically, and the fistula was transected. An assisted anorectal pull-through was then performed using a minimal perineal incision. Clinical features, age at operation, associated anomalies, ratio/sacrum (sacral ratio [SR]), distal colostogram, operative findings, complications, urinary continence, voluntary bowel movements, constipation, soiling, and requirements of bowel management program were analyzed. Patients older than 3 years and 6 months and with more than 3 months after colostomy closure were included in the analysis of functional results.

RESULTS:

The mean age at the time of operation was 21.8 months. Urogenital anomalies were seen in 6 (75%) of the 8 girls. Two patients had SRs less than 0.6. Only 3 patients in each group were considered for evaluation of functional results. Mean age was 67 months in 3 (G1) and 64 months in 3 (G2) patients. All 6 patients were continent of urine. Only 1 in G1 had an SR less than 0.6. Voluntary bowel movements were present in 1 patient in G1 and 2 in G2. One patient in G1 had severe constipation and grade 2 soiling requiring bowel management program (SR <0.6), and 1 patient in G2 had occasional soiling.

CONCLUSIONS:

Laparoscopy allowed an optimal view of the pelvis and helped to achieve a low dissection of the fistula. Although the number of patients in this study is few, functional results with LT seem to be comparable to the open PSARP approach when done by experienced pediatric surgeons. The laparoscopic approach may be considered as an option for the treatment of this rare anomaly.

PMID:
20850629
DOI:
10.1016/j.jpedsurg.2010.02.064
[PubMed - indexed for MEDLINE]
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