How accurate is glucose analysis in the presence of multiple interfering substances in the neonate? (glucose analysis and interfering substances)

Jain, Renu; Myers, Thomas F.; Kahn, Stephen E.; Zeller, W. Patrick

doi:10.1002/(sici)1098-2825(1996)10:1<13::aid-jcla3>3.0.co;2-m

Cited by 16 publications

(12 citation statements)

References 10 publications

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“…The impact of specific interfering substances or hematocrit are device-specific (436 -440). Elevated levels of multiple interfering substances may alter bedside glucose results, although each substance, by itself, may be below the interference threshold specified by the manufacturer (441).…”

Section: What Is the Role Of Bedside Glucose Monitoring In The Hospitmentioning

confidence: 99%

Management of Diabetes and Hyperglycemia in Hospitals

et al. 2004

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Section: What Is the Role Of Bedside Glucose Monitoring In The Hospitmentioning

confidence: 99%

Management of Diabetes and Hyperglycemia in Hospitals

et al. 2004

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“…However, use of these devices in daily routine may occur outside these hematocrit values, e.g., in critically ill patients, extreme exercise, and late-stage nephropathy. [13][14][15] Technical accuracy of glucose meters is usually not determined against the gold standard method for glucose assessment (isotope dilution mass spectrometry) but by comparison with a method in routine use in the clinical laboratory, thus establishing a comparative accuracy. 11,12 However, bedside devices are often used to determine glucose concentrations when frequent monitoring of glucose is important, e.g., for daily insulin dosing calculations.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Electrochemistry Corrects for Hematocrit Interference on Blood Glucose Determinations with Patient Self-Measurement Devices

Musholt

Schipper

Thomé

et al. 2011

J Diabetes Sci Technol

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As hematocrit variations occur in daily routine (e.g., because of smoking, exercise, hypermenorrhea, pregnancy, stay in mountains, and hemodialysis), our results may encourage use of meters with stable performance under these conditions. Dynamic electrochemistry as used in the BGStar device (sanofi-aventis) appears to be an effective technology to correct for potential hematocrit influence on the meter results.

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“…This can nevertheless explain the relative improvement noted in the last years of the study. We also did not consider biological interference, such as the hematocrit level (23,24), glucose levels (25), bilirubinemia (26), or fluorescein (27). All these factors should modify the values of glucose meters.…”

Section: Methodsmentioning

confidence: 99%

Evolution of Analytical Performance in Portable Glucose Meters in the Last Decade

et al. 2003

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OBJECTIVE -To assess and compare the technical accuracy of portable glucose meters during the last decade.RESEARCH DESIGN AND METHODS -One-thousand preprandial (pre) and postprandial (post) capillary whole-blood glucose values measured with meters owned mainly by diabetic patients were compared with a single laboratory method yearly from 1989 to 1999. A total of 21,950 capillary measurements and their corresponding laboratory reference values were analyzed at our clinic.RESULTS -The lowest mean absolute difference was found in 1989 (pre: 2 Ϯ 22 mg/dl, post: 9 Ϯ 31 mg/dl) (mean Ϯ SD). The highest mean absolute difference was observed in 1993 (pre: 31 Ϯ 33 mg/dl) and 1996 (post: 50 Ϯ 35 mg/dl). The highest mean relative deviation was observed in 1990 (pre: 16.4%) and 1996 (post: 20.6%). The highest percentage of readings that were within a 5% deviation limit were observed in 1998 (pre: 44.5%) and in 1997 (post: 36.7%). Based on blood glucose levels within Ϯ5 and Ϯ10% of laboratory values, the technical accuracy of meters was similar for 1989 and 1999 (P ϭ 0.27 and 0.52, respectively). The percentage of pre values in zone A of Clarke's error grid analysis was Ͼ90% in 1989, 1997, 1998, and 1999.CONCLUSIONS -The analytical performance of glucose meters decreased between 1990 and 1996 but was restored between 1997 and 1999. Nevertheless, our data suggest that the technical accuracy of glucose meters has not significantly improved during the last decade. Complementary studies taking into account the preanalytical improvements of the recent meters, as well as their calibration method, appear necessary. Diabetes Care 26:1170 -1175, 2003S elf-monitoring of blood glucose is now considered to be an important tool in the management of insulintreated diabetes (1). Its importance has increased since Diabetes Control and Complications Trial results have shown that proper control of glucose levels is associated with a reduced risk of microvascular disease in type 1 diabetes (2). Portable glucose meters are widely used in type 2 diabetes, although their contribution to blood glucose improvement has not been established (3). In the last two decades, results obtained with glucose meters appear to have become more reproducible and accurate. The meters have also become smaller, faster for blood glucose analysis, and easier to use (4,5). Although there are some studies concerning user error (6,7), information relating to the evolution of analytical error appears limited (8). To determine whether the analytical accuracy has changed in relation to the global improvement of meter performances, we have prospectively compared, at our clinic and under medical control, 1,000 preprandial and postprandial capillary blood glucose measures using various portable meters on a yearly basis between 1989 and 1999 in comparison to a single reference method (RM). RESEARCH DESIGN AND METHODS -In our Department ofDiabetes, most of the diabetic patients (mainly type 1 and type 2 diabetes) benefit from an annual check-up during which each patient's device ...

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How accurate is glucose analysis in the presence of multiple interfering substances in the neonate? (glucose analysis and interfering substances)

Cited by 16 publications

References 10 publications

Management of Diabetes and Hyperglycemia in Hospitals

Management of Diabetes and Hyperglycemia in Hospitals

Dynamic Electrochemistry Corrects for Hematocrit Interference on Blood Glucose Determinations with Patient Self-Measurement Devices

Evolution of Analytical Performance in Portable Glucose Meters in the Last Decade

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