Functional Colorectal Disorders & Bowel Management

Functional colorectal disorders in children demand technique-driven, multidisciplinary management. Early irrigation training—even before ostomy takedown in Hirschsprung patients—may reduce enterocolitis risk and ease post-operative adaptation. Intraoperative ICG fluorescence imaging improves visualization of blood supply during pull-through procedures, reducing leaks and ischemia. High-frequency ultrasound shows promise for measuring bowel wall thickness to identify aganglionic segments, potentially supplementing traditional biopsy. Enterocolitis pathophysiology involves reduced mucus protection and mechanical stress contributing to microbial imbalance and barrier breakdown. Novel procedures—perineal-preserving PSARP and posterior rectal advancement anoplasty—aim to reduce complications while improving functional outcomes in anorectal malformations. Pelvic floor dysfunction is underrecognized in pediatric constipation; most patients without congenital causes demonstrate dysynergic puborectalis contraction. Treatment escalates from fiber and laxatives through pelvic floor physical therapy to Botox injection of the puborectalis (100 units in ten 1-mL aliquots). Bowel-bladder dysfunction overlap mandates screening both systems. Long-term success requires coordinated multidisciplinary care, robust transition programs, and ongoing bowel management education.