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  • Title: 13C-labeled mixed triglyceride breath test (13C MTG-BT) in healthy children and children with cystic fibrosis (CF) under pancreatic enzyme replacement therapy (PERT): a pilot study.
    Author: Herzog DC, Delvin EE, Albert C, Marcotte JE, Pelletier VA, Seidman EG.
    Journal: Clin Biochem; 2008 Dec; 41(18):1489-92. PubMed ID: 18817766.
    Abstract:
    The MTG-BT estimates the hydrolysis of triacyl-glycerols by pancreatic lipase, and appears attractive for monitoring exogenous lipase requirements in patients with exocrine pancreatic insufficiency. To assess the test's discrimination capacity and repeatability, 9 CF patients with PERT and 10 healthy children underwent the (13)C-MTG-BT twice, at a 2- to 4-week interval. The test distinguished well between patients with severe exocrine pancreatic insufficiency (SEPI) and healthy subjects. However, within-subject variability for postprandial per thousand(13)C-enrichment and postprandial % dose recovery (PDR) was high in both groups. Therefore, the (13)C-MTG-BT seems useful to distinguish between SEPI and normal exocrine pancreatic function, but requires further development to improve its repeatability.
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