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Congenital pouch colon in females
R Chadha1, S Gupta, J K Mahajan
1Department of Pediatric Surgery, Lady Hardinge Medical College and associated Kalawati Saran Children's Hospital, New Delhi - 110001, India.
Insights
Congenital pouch colon (CPC) with anorectal agenesis in girls presents varied presentations. Surgical management, including fistula ligation and pouch excision, achieved successful outcomes in most cases.
Area of Science:
- Pediatric Surgery
- Congenital Malformations
- Gastrointestinal Surgery
Background:
- Congenital pouch colon (CPC) with anorectal agenesis is a rare condition requiring specialized surgical intervention.
- Understanding the spectrum of associated genitourinary abnormalities is crucial for comprehensive management.
Observation:
- Ten girls diagnosed with CPC and anorectal agenesis between 1995 and 1998 were classified into four groups based on proximal normal colon length.
- Patients with limited normal colon often presented with cloacal anomalies or fistulas (colovesical/colovestibular) and complex genitourinary malformations.
- No sacral abnormalities or other major malformations were noted in this cohort.
Findings:
- Initial surgical strategies included fistula ligation, subtotal pouch excision with tubularization, ileostomy, or window colostomy.
- Definitive pull-through procedures (posterior sagittal approach) were performed using tubularized colon, ileum, or proximal colon.
- Patients with longer normal colon segments typically had vestibular fistulas, managed with proximal colostomy and pouch excision.
Implications:
- Tailored surgical approaches based on CPC classification and associated anomalies are essential for successful treatment.
- The study highlights the importance of addressing complex genitourinary tract abnormalities alongside anorectal malformations.
- Effective surgical management, including pull-through procedures, leads to well-tolerated outcomes in patients with CPC.
Abstract:
From January 1995 to March 1998, congenital pouch colon (CPC) with anorectal agenesis was diagnosed in ten girls who were classified into four groups based on the length of normal colon proximal to the colonic pouch. Of six girls with little or no normal colon, one had a cloacal anomaly while five had a colovesical or colovestibular fistula along with a completely bifid uterus and cervix and a septate vagina. Initial surgery consisted of ligation of the fistula and subtotal pouch excision with tubularization of the remaining colon in four girls, ileostomy after excision of a gangrenous pouch in one, and window colostomy in another. None of the patients had a sacral abnormality or associated major malformation. Definitive surgery using the posterior sagittal approach consisted of a pull-through of the tubularized colon in three girls (including one in whom one-stage cloacal reconstruction was performed), the ileum in one, and the proximal colon in another. The four girls with a longer length of normal colon had an associated vestibular fistula. In these, a colostomy was constructed just proximal to the pouch with definitive surgery in two patients consisting of excision of the pouch and pull-through of the proximal colon. Definitive surgery was well tolerated in all seven patients. The embryogenesis of this condition and the related genitourinary tract abnormalities are discussed.