Lactose malabsorption based on breath hydrogen test in children with recurrent abdominal pain

Breath hydrogen test for detecting lactose malabsorption in infants and children. Prevalence of lactose malabsorption in Japanese children and adults.

The breath hydrogen test (BHT) was adapted for use in young infants and children. The diagnostic criterion of sugar malabsorption in the BHT was determined by oral administration of 0.5 g/kg of unabsorbable sugar (lactulose) to 21 healthy infants and children. A maximum increase in breath hydrogen less than 0.05 ml/min per m2 was observed in all subjects. A good correlation between results by t...

Lactose malabsorption during gastroenteritis, assessed by the hydrogen breath test.

Thirty-eight infants and young children with gastroenteritis were investigated for lactose malabsorption. Each of them was given an oral lactose load of either 0.5 g/kg or 2 g/kg after which breath hydrogen excretion was measured, and each was observed to see if he had clinical symptoms of lactose intolerance. Only one patient, given 2 g/kg lactose, had clinical intolerance. His breath hydrogen...

[Lactose malabsorption in children and adolescents: diagnosis through breath hydrogen test using cow milk].

OBJECTIVE To determine the prevalence of lactose malabsorption and its association with skin color and age in children and teenagers attending public schools in Porto Alegre, Brazil. METHODS A cross-sectional study was performed with 225 subjects between 8 and 18 years attending two public schools in Porto Alegre, Brazil. Patients were randomly selected. Subjects were classified according to ...

Prevalence of lactose intolerance in children with recurrent abdominal pain.

Fructose intolerance/malabsorption and recurrent abdominal pain in children.

OBJECTIVES The purpose of the present study was to ascertain whether pediatric patients with chronic abdominal pain had concurrent fructose intolerance as determined by a standardized dose breath hydrogen test (BHT), and whether symptoms would improve with a low-fructose diet. METHODS The fructose BHT test was administered to patients evaluated in clinic with unexplained chronic abdominal pai...