Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Lindpointner, S; Korsatko, S; Köhler, G; Köhler, H; Schaller, R; Kaidar, R; Yodfat, O; Schaupp, L; Ellmerer, M; Pieber, TR; Regittnig, W.
Use of the site of subcutaneous insulin administration for the measurement of glucose in patients with type 1 diabetes.
Diabetes Care. 2010; 33(3): 595-601.
Doi: 10.2337/dc09-1532
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- Leading authors Med Uni Graz
- Lindpointner Stefan
- Regittnig Werner
- Co-authors Med Uni Graz
- Ellmerer Martin
- Köhler Gerd
- Korsatko Stefan
- Pieber Thomas
- Schaupp Lukas
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- Abstract:
- OBJECTIVE To simplify and improve the treatment of patients with type 1 diabetes, we ascertained whether the site of subcutaneous insulin infusion can be used for the measurement of glucose. RESEARCH DESIGN AND METHODS Three special indwelling catheters (24-gauge microperfusion [MP] catheters) were inserted into the subcutaneous adipose tissue of subjects with type 1 diabetes (n = 10; all C-peptide negative). One MP catheter was perfused with short-acting insulin (100 units/ml, Aspart) and used for insulin delivery and simultaneous glucose sampling during an overnight fast and after ingestion of a standard glucose load (75 g). As controls, the further two MP catheters were perfused with an insulin-free solution (5% mannitol) and used for glucose sampling only. Plasma glucose was measured frequently at the bedside. RESULTS Insulin delivery with the MP catheter was adequate to achieve and maintain normoglycemia during fasting and after glucose ingestion. Tissue glucose concentrations derived with the insulin-perfused catheter agreed well with plasma glucose levels. Median correlation coefficient and median absolute relative difference values were found to be 0.93 (interquartile range 0.91-0.97) and 10.9%, respectively. Error grid analysis indicated that the percentage number of tissue values falling in the clinically acceptable range is 99.6%. Comparable analysis results were obtained for the two mannitol-perfused catheters. CONCLUSIONS Our data suggest that estimation of plasma glucose concentrations from the glucose levels directly observed at the site of subcutaneous insulin infusion is feasible and its quality is comparable to that of estimating plasma glucose concentrations from glucose levels measured in insulin-unexposed subcutaneous tissue.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Blood Glucose - analysis
- Blood Specimen Collection - instrumentation
- Catheters, Indwelling -
- Diabetes Mellitus, Type 1 - blood
- Diagnostic Techniques, Endocrine - instrumentation
- Feasibility Studies -
- Female -
- Humans -
- Infusion Pumps -
- Infusions, Subcutaneous -
- Insulin - administration and dosage
- Male -
- Models, Biological -
- Prognosis -
- Time Factors -