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Ellmerer, M; Haluzik, M; Blaha, J; Kremen, J; Svacina, S; Toller, W; Mader, J; Schaupp, L; Plank, J; Pieber, T.
Clinical evaluation of alternative-site glucose measurements in patients after major cardiac surgery.
Diabetes Care. 2006; 29(6):1275-1281 Doi: 10.2337/dc05-2377 [OPEN ACCESS]
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Leading authors Med Uni Graz: Ellmerer Martin
Co-authors Med Uni Graz: Mader Julia; Pieber Thomas; Schaupp Lukas; Toller Wolfgang
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Abstract:: OBJECTIVE- Tight glycemic control improves outcome in critically ill patients but requires frequent glucose measurements. Subcutaneous adipose tissue (SAT) has been characterized as promising for glucose monitoring in diabetes, but it remains unknown whether it can also be used as an alternative site in critically ill patients. The present study was performed to clinically evaluate the relation of glucose in SAT compared with arterial blood in patients after major cardiac surgery. RESEARCH DESIGN AND METHODS- Forty critically ill patients were investigated at two clinical centers after major cardiac surgery. Arterial blood and SAT microdialysis samples were taken in hourly intervals for a period of up to 48 h. The glucose concentration in dialysate was calibrated using a two-step approach, first using the ionic reference technique to calculate the SAT glucose concentration (SATg) and second using a one-point calibration procedure to obtain a glucose profile comparable to SAT-derived blood glucose (BgSAT). Clinical validation of the data was performed by introducing data analysis based on an insulin titration algorithm. RESULTS- Correlation between dialysate glucose and blood glucose (median 0.80 [inter-quartile range 0.68-0.88]) was significantly improved using the ionic reference calibration technique (SATgvs.blood glucose 0.90 [0.83-0.94]; P < 0.001). Clinical evaluation of the data indicated that 96.1% of glucose readings from SAT would allow acceptable treatment according to a well-established insulin titration protocol. CONCLUSIONS- The results indicate good correlation between SATg and blood glucose in patients after major cardiac surgery. Clinical evaluation of the data suggests that with minor limitations, glucose from SAT can be used to establish tight glycemic control in this patient group.
Find related publications in this database (using NLM MeSH Indexing): Aged -; Blood Glucose - analysis; Blood Pressure -; Calibration -; Cardiac Surgical Procedures -; Critical Illness -; Female -; Heart Rate -; Humans -; Injections, Subcutaneous -; Male -; Middle Aged -; Monitoring, Physiologic - instrumentation Monitoring, Physiologic - methods; Postoperative Period -