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Intensive Care Medicine
Published in: Intensive Care Medicine 12/2012

01-12-2012 | Original

Risk factors for hypoglycaemia in neurocritical care patients

Authors: Freya M. van Iersel, Arjen J. C. Slooter, Renee Vroegop, Annemiek E. Wolters, Charlotte A. M. Tiemessen, Rik H. J. Rösken, Johannes G. van der Hoeven, Linda M. Peelen, Cornelia W. E. Hoedemaekers

Published in: Intensive Care Medicine | Issue 12/2012

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Abstract

Purpose

To identify risk factors for hypoglycaemia in neurocritical care patients receiving intensive insulin therapy (IIT).

Methods

We performed a nested case–control study. All first episodes of hypoglycaemia (glucose <80 mg/dL, <4.4 mmol/L) in neurocritical care patients between 1 March 2006 and 31 December 2007 were identified. Patients were treated according to the local IIT protocol, with target blood glucose levels between 4.5 and 6.0 mmol/L (81.0–108.0 mg/dL). The first hypoglycaemic event of every patient (index moment) was used to match to a control patient. Possible risk factors preceding the index moment were scored using hospital records and analysed with conditional logistic regression.

Results

Of 786 neurocritical care patients, 449 developed hypoglycaemia (57.1 %). Independent risk factors for hypoglycaemia were lowering nutrition 6 h before the index moment without insulin dose reduction (odds ratio (OR) 5.25, 95 % confidence interval (95 % CI) 1.32–20.88), mechanical ventilation (OR 2.59, 95 % CI 1.56–4.29), lowering the dosage of norepinephrine 3 h before the index moment (OR 2.44, 95 % CI 1.07–5.55), a hyperglycaemic event (>10 mmol/L, >180.0 mg/dL) in the 24 h preceding the index moment (OR 2.40, 95 % CI 1.26–4.58), gastric residual in the 6 h preceding the index moment without insulin dose reduction (OR 1.76, 95 % CI 1.05–2.96) and dosage of insulin at the index moment (OR 0.83, 95 % CI 0.76–0.90).

Conclusion

Hypoglycaemia occurs in a considerable proportion of neurocritical care patients. We recommend the identification of these risk factors in these patients to avoid the occurrence of hypoglycaemia.
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Metadata
Title
Risk factors for hypoglycaemia in neurocritical care patients
Authors
Freya M. van Iersel
Arjen J. C. Slooter
Renee Vroegop
Annemiek E. Wolters
Charlotte A. M. Tiemessen
Rik H. J. Rösken
Johannes G. van der Hoeven
Linda M. Peelen
Cornelia W. E. Hoedemaekers
Publication date
01-12-2012
Publisher
Springer-Verlag
Published in
Intensive Care Medicine / Issue 12/2012
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI
https://doi.org/10.1007/s00134-012-2681-2

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