Biomaterial Database

[Hydrogen test (H2) in the air expired for the diagnosis of small bowel bacterial overgrowth]. 1995

R T Marcelino, and U Fagundes-Neto

Departamento de Pediatria, Universidade Federal de São Paulo.

The small bowel bacterial overgrowth is characterized by the presence of colonic flora in the small bowel, may to lead malabsorption and/or diarrhea and/or weight loss. The small-bowel culture has served as the "gold standard" for diagnosing bacterial overgrowth. The colonic flora is able to ferment carbohydrates that are present in the lumen of the intestinal tract with production of hydrogen, which is subsequently observed and excreted by the breath. Therefore, the hydrogen breath test after oral carbohydrates administration represents an alternative, non-invasive and specific method for diagnosing small bowel bacterial overgrowth.

UI	MeSH Term	Description	Entries
D007410	Intestinal Diseases	Pathological processes in any segment of the INTESTINE from DUODENUM to RECTUM.	Disease, Intestinal,Diseases, Intestinal,Intestinal Disease
D007421	Intestine, Small	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.	Small Intestine,Intestines, Small,Small Intestines
D001944	Breath Tests	Any tests done on exhaled air.	Breathalyzer Tests,Breath Test,Breathalyzer Test,Test, Breath,Test, Breathalyzer,Tests, Breath,Tests, Breathalyzer
D004755	Enterobacteriaceae	A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.	Coliform Bacilli,Enterobacteria,Ewingella,Leclercia,Paracolobactrum,Sodalis
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity