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Radiology, Vol 183, 681-684, Copyright © 1992 by Radiological Society of North America

ARTICLES

Pneumatic reduction of intussusception: 5-year experience

M Stein, DJ Alton and A Daneman
Department of Diagnostic Imaging, Hospital for Sick Children, University of Toronto, Ont, Canada.

Pneumatic reduction of 246 intussusceptions was attempted in 219 patients over a 5-year period. The mean age of the patients was 15.4 months. Successful reduction was achieved in 199 cases (80.9%). Bowel perforation occurred in seven cases (2.8%), requiring needle decompression of tension pneumoperitoneum in one case. Recurrence of intussusception occurred in 27 cases (11%). The mean fluoroscopy time was 3.5 minutes +/- 0.2 in successful reductions and 9.3 minutes +/- 0.9 in failed reductions (P less than .001). Logistic regression analysis helped identify four independent predictors of failure, as follows: (a) ileoileocolic intussusception (P less than .001), (b) long duration of symptoms (P less than .001), (c) rectal bleeding (P less than .01), and (d) failed reduction with barium at another institution (P less than .05). Predictors of bowel perforation were a younger age (P less than .05) and long duration of symptoms (P less than .05). Surgery was performed in 48 cases (19.5%), 16 of which required bowel resection. Transmural necrosis of bowel wall was found in nine specimens. The most important predictor of outcome in this series was a long duration of symptoms. Pneumatic reduction is a useful substitute for barium in the management of pediatric intussusception.


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