Accuracy and reliability of continuous blood glucose monitor in post-surgical patients

K. Yamashita, T. Okabayashi, Takeshi Yokoyama, T. Yatabe, H. Maeda, M. Manabe, K. Hanazaki

Research output: Contribution to journalArticle

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Abstract

Background: The STG-22™ is the only continuous blood glucose monitoring system currently available. The aim of this study is to determine the accuracy and reliability of the STG-22™ for continuously monitoring blood glucose level in post-surgical patients. Methods: Fifty patients scheduled for routine surgery were studied in surgical intensive care unit (ICU) of a university hospital. After admission to the ICU, the STG-22™ was connected to the patients. An attending physician obtained blood samples from a radial arterial catheter. Blood glucose level was measured using the ABL™800FLEX immediately after blood collection at 0, 4, 8, and 16 h post-admission to the ICU (total of 200 blood glucose values). Results: The correlation coefficient (R2) was 0.96. In the Clarke error grid, 100% of the paired measurements were in the clinically acceptable zone A and B. The Bland and Altman analysis showed that bias±limits of agreement (percent error) were 0.04(0.7)±0.35(6.3) mmol (mg/dl) (7%), -0.11(-2)±1.22(22) (15%) and -0.33(-6)±1.28(23) (10%) in hypoglycemia (<70(3.89) mmol (mg/dl), normoglycemia (3.89(70)-10(180) mmol (mg/dl), and hyperglycemia (>10(180) mmol (mg/dl), respectively. Conclusions: The STG-22™ can be used for measuring blood glucose level continuously and measurement results are consistent with intermittent measurement (percentage error within 15%). Therefore, the STG-22™ is a useful device for monitoring in blood glucose level in the ICU for 16 h.

Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalActa Anaesthesiologica Scandinavica
Volume53
Issue number1
DOIs
Publication statusPublished - Jan 1 2009
Externally publishedYes

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Blood Glucose
Intensive Care Units
Critical Care
Hypoglycemia
Catheters
Physicians
Equipment and Supplies

All Science Journal Classification (ASJC) codes

  • Anesthesiology and Pain Medicine

Cite this

Accuracy and reliability of continuous blood glucose monitor in post-surgical patients. / Yamashita, K.; Okabayashi, T.; Yokoyama, Takeshi; Yatabe, T.; Maeda, H.; Manabe, M.; Hanazaki, K.

In: Acta Anaesthesiologica Scandinavica, Vol. 53, No. 1, 01.01.2009, p. 66-71.

Research output: Contribution to journalArticle

Yamashita, K. ; Okabayashi, T. ; Yokoyama, Takeshi ; Yatabe, T. ; Maeda, H. ; Manabe, M. ; Hanazaki, K. / Accuracy and reliability of continuous blood glucose monitor in post-surgical patients. In: Acta Anaesthesiologica Scandinavica. 2009 ; Vol. 53, No. 1. pp. 66-71.
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