title: Orocoecal transit time in healthy and constipated children.
abstract: Orocoecal transit time (OCTT), assessed by means of H2 breath test after lactulose and/or after a semisolid standard meal, was studied in normal and constipated children. Both control subjects and patients with constipation showed a significantly longer OCTT after a standard meal than after lactulose ingestion (p less than 0.01). Whereas the OCTT after lactulose did not differ in the two groups, the constipated patients had a significantly longer transit time after a standard meal when compared to controls (p less than 0.05). No correlation was observed within each group between the OCTT after a standard meal or after lactulose ingestion (r = -0.077; p greater than 0.01). These findings suggest that 1) measurement of the transit of a standard meal instead of a lactulose solution may offer more direct insight into the role of small intestinal transit of food, both in physiological and pathological conditions, 2) gastrointestinal segments other than colon may play a role in chronic non organic constipation of childhood.
authors.affiliation: Department of Paediatrics, Second School of Medicine, University of Naples, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Vajro
authors.forename: G
authors.initials: G
authors.lastname: Silano
authors.forename: D
authors.initials: D
authors.lastname: Longo
authors.forename: A
authors.initials: A
authors.lastname: Staiano
authors.forename: A
authors.initials: A
authors.lastname: Fontanella
mesh_terms: D001944:Breath Tests; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D003248:Constipation / Q000503:physiopathology*; D005260:Female; D005502:Food; D005772:Gastrointestinal Transit; D006801:Humans; D006859:Hydrogen / Q000032:analysis; D007792:Lactulose / Q000008:administration & dosage; D008297:Male
chemical_list: D007792:Lactulose; D006859:Hydrogen