Indications for laparotomy after hydrostatic reduction for intussusception.

A criterion for successful hydrostatic reduction of intussusception is reflux into the terminal ileum. In our practice, absence of reflux into the terminal ileum is not an indication for laparotomy if the radiographic appearances suggest edema of the ileocecal valve. The aim of this study was to validate our approach. We reviewed the case notes of patients with a diagnosis of intussusception (n = 107; age 11.74 +/- 1.48 months; mean +/- SEM) treated from 1987 to 1991. Eleven required primary laparotomy for peritonitis. Ninety-six patients who had a contrast enema were studied. Edema of the ileocecal valve was defined as a persistent filling defect in the cecum after apparently complete hydrostatic reduction, without reflux of contrast into the distal small bowel. In 59 patients hydrostatic reduction was successful: 11 (18.6%) had edema of the ileocecal valve and no reflux contrast into the terminal ileum (group B). All improved clinically after the enema and needed no further treatment. In 37 patients hydrostatic reduction of the intussusception was unsuccessful and an operation was performed: 26 (70.3%) required manual reduction of the intussusception (group C) and 11 (29.7%) underwent bowel resection (group D). None of the patients with edema of ileocecal valve required further treatment or developed recurrent intussusception. In none of the patients who had an operation was the intussusception found to have been reduced by the contrast enema. There were no deaths.(ABSTRACT TRUNCATED AT 250 WORDS)