JOURNAL ARTICLE
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
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Gastric acid hypersecretion in short bowel syndrome in infants: association with extent of resection and enteral feeding.

To determine the frequency of gastric acid hypersecretion in infants with chronic malabsorption due to short bowel syndrome, acid secretory function was determined in 23 infants with malabsorption 2-22 months following small bowel resection and in a control group of 14 chronically ill, age- and weight-matched infants who did not undergo bowel resection. The prevalence of basal acid hypersecretion (defined as acid output 2 SD above the mean for the control group) was 17% (4 of 23). Basal gastric acid hypersecretion was associated with two factors: massive small bowel resection and initiation of enteral feeding. Basal acid hypersecretion was present on the initial study in 3 of 7 infants with less than one-third of the small bowel remaining, but in only 1 of 16 with more than one-third intact (p less than 0.05). Hypergastrinemia was present in 3 of 6 infants following massive bowel resection, but in only 1 of 15 with more than one-third intact (p less than 0.05), but hypergastrinemia was not consistently associated with hypersecretion. In each of six previously unfed infants, a trial of enteral feeding resulted in increased basal and maximal acid output. Three infants developed basal acid hypersecretion during initiation of enteral feeding. There was no evidence of pentagastrin-stimulated maximal acid hypersecretion in any of the infants.

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