Two-staged management for all types of congenital pouch colon

Congenital pouch colon: A comparative study between two modalities of management

BACKGROUND

Congenital pouch colon (CPC) is an unusual anomaly with an unique geographical distribution. The aim of this study was to find out the incidence of CPC among anorectal malformation (ARM) cases in our institute and to compare the outcome between conventional three-staged surgery versus two-staged management approach.

MATERIALS AND METHODS

This study was conducted in the department of pediatric surgery over a period of 7 years from 1^st April 2013 to 31^st March 2020.

RESULTS

Out of 754 cases of ARMs, 43 cases of CPC were detected. The incidence of pouch colon among patients with high ARMs was found to be 7.6% with a male predominance (M:F = 4.4:1). The anomaly was diagnosed in 72% of our patients preoperatively and Type IV variety was the most common intra-operative finding. The survival after initial hospitalisation was 82% and 88% in three-stage and two-stage surgical procedures, respectively. However, the final clinical outcome after the completion of all stages of surgery and follow-up was better in two-staged approach (54% vs. 47%).

CONCLUSION

Although, CPC is a rare anomaly, the incidence in our institute is 7.6% among high ARM cases. As compared to conventional three-staged surgery, the two-staged management approach has the advantage of better survival and decreased morbidity.

Type IV Congenital Pouch Colon in Male Children: Anatomical Variations and a Proposed New Subclassification

Background:

Congenital pouch colon (CPC) is a rare variant of anorectal malformation. In male patients, CPC communicates distally with the urogenital tract by a large fistula. The CPC cases which do not fulfill the criteria as mentioned in the classical description are reported along with the pertinent literature review.

Materials and Methods:

This was a retrospective study from January 2004 to December 2017 of male children with Type IV CPC. We evaluated clinical presentation, primary management, anatomical relationship, previous surgical intervention, definitive management, result, and outcome in terms of continence status on Templeton score.

Results:

Fifty-one children were included in the study among whom 36 children (Group 1) had a colovesical fistula and 15 children (Group 2) had no communication of the pouch with the genitourinary tract. In Group 2 children, the clinical presentations and management were varied: 4 underwent primary pull-through procedure, whereas 11 underwent staged procedure. Group 2 included three children in whom a narrow and thin-walled anal canal or anal canal with lower rectum was present, which was incorporated during the pull-through procedure. On continence assessment, only one child in Group 1 had “good” continence score compared to four children (three having anal canal) in Group 2.

Conclusion:

CPC Type IV can present without genitourinary tract communication (fistula), contrary to its emblematic description. Awareness about anatomical variations and adaptation of surgical technique accordingly is vital. The identification of the anal canal with or without the lower part of the rectum (even though apparently narrow and thin walled) and incorporation of this in bowel continuity lead to better outcomes in terms of continence.

Congenital pouch colon: Our experience with coloplasty

BACKGROUND

Congenital pouch colon (CPC) or congenital short colon is an entity found mainly in Indian subcontinent. In CPC, colon is replaced with partially or completely abnormal pouch connected to the genitourinary tract by a fistula (colovesical). Management protocol is different in different institute. In this article, we are sharing our three stage standard management approach; principle and technique of coloplasty in cases in which colon length is not adequate for pull through and their follow-up. This study aims to show the result of coloplasty in complete CPC.

MATERIALS AND METHODS

This is retrospective observational study, of 5 years duration. The medical record of these patients was reviewed for demographic information, clinical features, investigations performed, operative notes, post-operative events and the outcome of surgery.

RESULTS

Total of 626 ARM cases were managed in 5 years duration in which 64 were of pouch colon. The age of presentation was 1-15 days. In fifty patients who completed their, all stage in that 34 patients were in which coloplasty were done in rest of 16 cases excision of CPC and colonic pull through done in view of adequate colonic length (type III and IV) for pull through. In 34 patient in which coloplasty were done showed satisfactory cosmetic and functional out came after stoma closer in follow-up.

CONCLUSIONS

Properly created coloplasty and three stage procedure for complete pouch colon give better result and less complications. Excision of pouch is not requiring in all cases of CPC.