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  • Title: [Hydrogen (H2) breath test following lactose loading in children with recurrent abdominal pain].
    Author: Winter B, Nothjunge J, Stern M.
    Journal: Klin Padiatr; 1990; 202(6):413-6. PubMed ID: 2266707.
    Abstract:
    To define the practical diagnostic value of H2 breath testing after lactose load in children with chronic abdominal pain, we measured end-expiratory H2 every 30 minutes for 2 hours after peroral lactose (2 g/kg body weight, Lactoscreen). H2 testing was done in 62 children (28 female, 32 male), aged between 2 and 16 years. Abdominal pain had been observed in these children for more than 2 months. Causes of abdominal pain other than lactose intolerance had been excluded. In 2 out of 62 children, H2 testing was impossible for lack of cooperation. 17 out of the remaining 60 children showed a positive test result (28.3%). In 15 patients, the rise in H2 exceeded 40 ppm, and was thus easily distinguished from a nonspecific rise (less than 25 ppm). Stool pH and Clini-test results were not correlating well with H2 findings, In 16 out of 17 children with positive H2 tests, abdominal pain had ceased on a diet free of lactose after a month. After 6 months 15 out of 17 children were symptom free. These data confirm early indication of non-invasive H2 testing in children with chronic abdominal pain.
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