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Failure of the hydrogen breath test to detect pulmonary sugar malabsorption. 1981

A J Gardiner, and M J Tarlow, and J Symonds, and J G Hutchison, and I T Sutherland

Five patients with sucrase-isomaltase deficiency, and one patient with primary glucose-galactose malabsorption had no increases in breath hydrogen excretion after oral sucrose or glucose. Anaerobic incubation with sugars of stool suspensions from 5 patients with primary sugar malabsorption produced by trace of hydrogen (17 microliter) in only one, while those from 13 or 14 controls produced a mean hydrogen volume of 640 microliter under similar conditions. Altered bacterial metabolism is a probable explanation. Breath hydrogen excretion did increase appreciably in 2 of these patients after oral lactulose showing that hydrogen excretion may vary according to the substrate. Therefore, observation of breath hydrogen excretion after lactulose is not recommended as a means of predicting false-negative breath tests with other sugars. The hydrogen breath test is not a reliable mean of diagnosing primary sugar malabsorption in children.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007792 Lactulose A synthetic disaccharide used in the treatment of constipation and hepatic encephalopathy. It has also been used in the diagnosis of gastrointestinal disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p887) Amivalex,Duphalac,Normase
D008297 Male Males
D001944 Breath Tests Any tests done on exhaled air. Breathalyzer Tests,Breath Test,Breathalyzer Test,Test, Breath,Test, Breathalyzer,Tests, Breath,Tests, Breathalyzer
D002239 Carbohydrate Metabolism, Inborn Errors Dysfunctions of CARBOHYDRATE METABOLISM resulting from inborn genetic mutations that are inherited or acquired in utero. Carbohydrate Metabolism, Inborn Error
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005188 False Negative Reactions Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed) False Negative Reaction,Reaction, False Negative,Reactions, False Negative
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D005260 Female Females

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