This study will evaluate changes in the fecal microbiome in constipated pediatric patients before and after antegrade continence enema placement and initiation of antegrade enema flushes. Subjects will have their microbiome sequenced prior to placement by obtaining a fecal sample. Pre-antegrade continence enema placement results will be compared to fecal samples obtained at 0, 4, 8 months after placement of the antegrade continence enema and initiation of miralax or golytely flushes to look for changes in bacterial diversity.
Recalcitrant chronic functional constipation necessitating a MACE appendicostomy or cecostomy for treatment at Riley Hospital for Children
Intact colonic motility as evidenced by CMS studies
Underlying anatomic or pathologic etiology for constipation
History of prior gastrointestinal surgery (excluding placement of G or GJ tubes)
Underlying severe GI disease unrelated to the patient's chronic constipation
Use within the past month of consent of probiotic supplements, prebiotic supplements or antibiotics