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Radiology, Vol 136, 67-75, Copyright © 1980 by Radiological Society of North America

ARTICLES

Radiological observations during transpyloric tube feeding in infants of low birth weight. Perforation of the duodenum and variations in normal duodenal anatomy

DF Merten, L Mumford, HC Filston, GW Brumley Jr, EL Effmann and H Grossman

Perforation of the duodenum is a serious complication of transpyloric tube feeding in infants of low birth weight. Polyvinyl chloride and (less commonly) silicone tubes have been implicated. Altered radiographic configuration of the tube in the region of the superior or inferior flexure, associated with clinical deterioration, pneumoperitoneum, peritonitis, or a retroperitoneal fistula, is diagnostic of duodenal perforation. The configuration of the tube may vary during uncomplicated transpyloric alimentation and is frequently incompatible with the expected anatomical course. Contrast examination may demonstrate normal anatomy or mobility of the distal duodenal loop as an adaptation to rigidity of the tube. The possibility of perforation appears to be increased at or adjacent to the flexures.




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