Current Surgical Management of Pediatric Idiopathic Constipation: A Systematic Review of Published Studies.

Abstract

Surgery for pediatric idiopathic constipation (IC) is undertaken after failure of bowel management programs. Decisions are influenced by rectal biopsy, transit studies, megacolon/megarectum, degree of soiling/incontinence, and anorectal manometry profile(s). A systematic review of ALL published studies critically evaluates outcomes of surgery for IC. MEDLINE (PubMed), Google Scholar, and EMBase were searched for English-language articles only. Studies included (1) peer-review publications with 3 or more patients, and (2) clinical outcomes defined by authors. Forty-five reports (1157 patients) met full inclusion criteria. Only 2 papers were randomized controlled trials. Many had small patient numbers (median n = 16; range: 3-114). Twenty-three described heterogenous populations with variant pathology. Follow-up was short (median = 1.5 years: range: 3 months-14 years). The antegrade continence enema operation (ACE)-[open/laparoscopic assisted, cecostomy, or "left sided" ACE]-was judged as successful in 82% of cases, although high morbidity and reoperations were reported. Colon resection and pull through operations had "good" outcome(s) in 79% of children with 17% reporting significant morbidity and a 10% incidence of revisional surgery. Anal dilatation did not improve outcome(s). Botulinum toxin injection scored equally effective compared to internal sphincter myectomy in short-term follow-up. Permanent colostomy was considered successful in 86% of refractory IC cases. Surgical management and outcome(s) for pediatric IC are based on low-quality evidence. No single operation was considered "best practice." This study crucially highlights that surgeons must develop better care strategies.