Clinical, laboratory and prognostic features of congenital large intestinal motor dysfunction (pseu do-Hirschsprung's disease)
One hundred and forty-eight cases of congenital large intestinal motor dysfunction (pseudo-Hirschsprung's disease) were reported by members of the Japanese Society of Pediatric Surgeons during the past 20 years. The disorder was defined as a congenital, non-mechanical obstruction of the intestine with the presence of intramural ganglia in the terminal rectum. Intramural ganglia were abnormal in 77 cases, normal in 42, and could not be determined in 29. Of those with abnormal intramural ganglia, 54 had immature ganglia or hypoganglionosis (oligoganglionosis), 15 had neuronal intestinal dysplasia, and eight had a segmental anomaly. Of those with a normal myenteric plexus, 22 had chronic and twelve had suspected idiopathic intestinal pseudo-obstruction syndrome; eight had megacystis-microcolon-intestinal hypoperistalsis syndrome. While cases with both hypoganglionosis and normal intramural ganglia had normal acetylcholine esterase activity, a significantly greater number of patients with hypoganglionosis lacked normal rectoanal reflexes. Patients with hypoganglionosis, chronic idiopathic intestinal pseudo-obstruction syndrome, and megalocystis-microcolon-intestinal hypoperistalsis syndrome had poor prognoses with an overall mortality of 36.9%. These findings indicate that congenital large intestinal motor dysfunction remains a serious disease of childhood.
Key wordsChronic idiopathic intestinal pseudo-obstruction Megacystis-microcolon-intestinal hypoperistalsis syndrome Hypoganglionosis Pseudo-Hirschsprung's disease
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