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The aim is to describe the association of glucose tolerance measured with three different tools (continuous glucose measurement system - CGMS, oral glucose tolerance testing - OGTT and optional intravenous glucose tolerance testing -IVGTT) with parameters out of lung function and anthropometric parameters in patients with cystic fibrosis.
Patients with cystic fibrosis (CF) with progressing disease are developing a glucose tolerance which resembles the metabolic state of a diabetic patient because of increasing impairment of endocrine pancreatic function. The prevalence of this diabetic metabolic state is increasing with age, reaching around 20% at the age of 20 years.
Over the last decade, research has already highlighted the negative influence of cystic fibrosis related diabetes (CFRD) on morbidity and mortality after the diagnosis of this condition.
As the deterioration in nutritional status and lung function can already be noticed 2-6 years before the onset of CFRD, the importance of early diagnosis in glucose abnormalities and its treatment therefore is crucial.
The currently used method to evaluate altered glucose metabolism in patients with CF is an annual oral glucose tolerance test (OGTT) with the glucose value after 120 min after oral ingestion of glucose-fluid as reference. This method may detect CFRD much later than we see deterioration of lung function and weight loss. This deterioration and the mortality in CF is related to CFRD.
An alternative diagnostic tool that has gained increasing attention and that is already routinely used in pediatric patients with diabetes mellitus type I is the continuous glucose monitoring system (CGMS) which was shown to be much more sensitive in detecting glucose abnormalities. To assess pancreatic endocrine dysfunction - the pathophysiologic cause for glucose intolerance - intravenous glucose tolerance testing (IVGTT) is the gold standard.
The investigator`s aim is to describe the association of glucose tolerance measured with three different tools/assessment procedures (CGMS, OGTT and optional IVGTT) with lung function and anthropometric parameters.
Observational Model: Cohort, Time Perspective: Prospective
Diagnostics for glucose tolerance with 3 different methods.
University childrens hospital Basel, UKBB
University Hospital, Basel, Switzerland
Published on BioPortfolio: 2015-10-07T09:23:22-0400
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A pathological state in which BLOOD GLUCOSE level is less than approximately 140 mg/100 ml of PLASMA at fasting, and above approximately 200 mg/100 ml plasma at 30-, 60-, or 90-minute during a GLUCOSE TOLERANCE TEST. This condition is seen frequently in DIABETES MELLITUS, but also occurs with other diseases and MALNUTRITION.
A test to determine the ability of an individual to maintain HOMEOSTASIS of BLOOD GLUCOSE. It includes measuring blood glucose levels in a fasting state, and at prescribed intervals before and after oral glucose intake (75 or 100 g) or intravenous infusion (0.5 g/kg).
Maintenance of a constant blood glucose level by perfusion or infusion with glucose or insulin. It is used for the study of metabolic rates (e.g., in glucose, lipid, amino acid metabolism) at constant glucose concentration.
A glucose transport facilitator that is expressed primarily in PANCREATIC BETA CELLS; LIVER; and KIDNEYS. It may function as a GLUCOSE sensor to regulate INSULIN release and glucose HOMEOSTASIS.
A glucoside-derived SODIUM-GLUCOSE TRANSPORTER 2 inhibitor that stimulates urinary excretion of glucose by suppressing renal glucose reabsorption. It is used to manage BLOOD GLUCOSE levels in patients with TYPE 2 DIABETES.
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