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Table of Contents   
CASE REPORT
Year : 2013  |  Volume : 18  |  Issue : 1  |  Page : 31-32
 

Congenital rectovestibular fistula associated with rectal atresia: A rare occurrence


Department of Pediatric Surgery, J. N. Medical College Hospital, A.M.U. Aligarh, Uttar Pradesh, India

Date of Web Publication7-Feb-2013

Correspondence Address:
Rizwan Ahmad Khan
Department of Pediatric Surgery, J. N. Medical College Hospital, A.M.U. Aligarh, Uttar Pradesh - 202 002
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9261.107015

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   Abstract 

We report a rare variety of anorectal malformation, rectal atresia associated with rectovestibular fistula. The case was successfully treated by posterior sagittal repair. The fistula was mobilized and the continuity of the rectum was established by circumferential anastomosis.


Keywords: Anorectal malformation, rectal atresia, rectovestibular fistula


How to cite this article:
Khan RA, Chana RS. Congenital rectovestibular fistula associated with rectal atresia: A rare occurrence. J Indian Assoc Pediatr Surg 2013;18:31-2

How to cite this URL:
Khan RA, Chana RS. Congenital rectovestibular fistula associated with rectal atresia: A rare occurrence. J Indian Assoc Pediatr Surg [serial online] 2013 [cited 2019 Nov 21];18:31-2. Available from: http://www.jiaps.com/text.asp?2013/18/1/31/107015



   Introduction Top


Rectal atresia is an extremely rare variant of anorectal malformation. It is predominantly seen in males with an incidence of 1-2% of all anorectal anomalies. [1] There are many case reports in the literature describing the occurrence of rectal atresia with urinary fistula in a male baby. [2],[3] The presence of rectal atresia in a female with associated rectovestibular fistula is an extremely rare condition and has been reported once earlier. [4] We present one such case and its management.


   Case Report Top


A 7-month-old female baby was referred to us with complaints of abnormal anal opening. The baby was full-term with no significant perinatal history. The mother gave history of a non-functioning normally located anal opening with passage of stools from the vestibule. Examination revealed three openings in the vestibule with a normally located anal opening. On probing, the anal opening was blind and permitting only 1.5 cm of the Hegar's dilator inside [Figure 1]. Using the posterior sagittal approach, the fistula was mobilized and circumferential anastomosis was established with the rectal segment. The patient made an uneventful recovery. At 1-year follow-up, the baby is doing well and has voluntary bowel movements.
Figure 1: Perineal examination revealed urethral opening (catheter in situ), vaginal opening (empty black arrow head), rectovestibular fistula (bold arrow head), and anal canal (white arrow head)

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   Discussion Top


Rectal atresia is a rare condition in which the anus and sphincter muscles are normally developed. It is mostly seen in male babies. Isolated rectal atresia in a female baby is a very rare condition and its association with any fistulous communication is even rarer. The exact pathogenesis of rectal atresia is unknown, but it is postulated to be secondary to intravascular thrombosis. [4] A good perineal examination is required to make the exact diagnosis. Gentle use of the probe is suggested for locating any fistulous communication which is a rare association with rectal atresia. As a definitive procedure, transanal end-to-end rectorectal anastomosis, mucosal proctectomy and coloanal anastomosis, and posterior sagittal approach have been suggested by different authors. [4],[5] Only one case of rectal atresia with rectovestibular fistula was reported by Kulshrestha in 1997. [6] They had initially done a diverting loop colostomy followed by definitive repair of the defect by posterior sagittal approach. During the definitive repair they had split open the blind anorectum followed by the mobilization of the vestibular fistula. Subsequently the anorectum was approximated and this was followed by the circumferential anastomosis of the anorectum and the mobilized fistula. In our case, the sphincter muscles were normally developed, and the posterior sagittal approach was used for the definitive repair. With a racket-shaped incision the fistulous communication was first mobilized by extending the incision posteriorly and separating the muscle complex in the midline. Further dividing the levator ani in the midline, the anorectal pouch was mobilized. The anorectal stump was opened at the apex and the continuity with the mobilized rectovestibular fistula was established end to end by circumferential anastomosis without compromising the rectal musculature [Figure 2]. As in any anorectal malformation, good continence is the main objective in the treatment of rectal atresia as well.
Figure 2: Diagrammatic representation of the procedure

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   Conclusion Top


Rectal atresia with a fistulous communication to the perineum is a rare condition. But the perineal examination must focus on such a possibility. Management with posterior sagittal approach is recommended and gives good results.

 
   References Top

1.Dorairajan T. Anorectal atresia. In: Stephens FD, Smith ED, Paul NW, editors. Anorectal malformations in Children. New York: Liss; 1988. p. 105-10  Back to cited text no. 1
[PUBMED]    
2.Lee CH, Chou MC, Yeh HM. Rectal atresia with rectourethral fistula: A rare anomaly. World J Pediatr 2007;3:50-1.  Back to cited text no. 2
    
3.Kulshrestha S, Gangopadhyay AN, Sahoo SP. An unusual variant of rectal atresia with rectovestibular fistula. J Pediatr Surg 1997;32:921-2.  Back to cited text no. 3
[PUBMED]    
4.Aslam A, Ashworth MT, Spicer RD. Posterior sagittal rectoplasty for rectal atresia: A definitive approach. Pediatr Surg Int 1996;11:408-9.   Back to cited text no. 4
    
5.Festen C, Severijnen RS, van der Staak FH, Rien PN. Rectal atresia: Pathogenesis and operative treatment. Pediatr Surg Int 1996;8:559-61.  Back to cited text no. 5
    
6.Gangopadhyaya AN, Sinha CK, Sahoo SP. Combined rectal atresia with rectal stenosis. Pediatr Surg Int 1997;22:605-6  Back to cited text no. 6
    


    Figures

  [Figure 1], [Figure 2]



 

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    Abstract
   Introduction
   Case Report
   Discussion
   Conclusion
    References
    Article Figures

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