Journal
CLINICAL RESPIRATORY JOURNAL
Volume 7, Issue 4, Pages 382-389Publisher
WILEY
DOI: 10.1111/crj.12020
Keywords
asthma; COPD; diabetes; glucose metabolism; hyperglycaemia; stress hyperglycaemia
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Funding
- Hospital District of Northern Savo
- Finnish Anti-Tuberculosis Association Foundation
- Pulmonary Foundation in Kuopio area
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IntroductionHyperglycaemia is a well-known phenomenon among patients with an exacerbation of asthma or chronic obstructive pulmonary disease (COPD). It may be associated with increased risks of death and complications. ObjectivesTo define the prevalence and determinants of hyperglycaemia in patients with an exacerbation of asthma or COPD. MethodsThis was a prospective, cross-sectional study including 153 hospitalised patients with an exacerbation of asthma or COPD. All received inhaled beta-2-adrenergic bronchodilators and oral glucocorticoids in internationally recommend doses. Plasma glucose was measured seven times during the first day. Hyperglycaemia was defined as fasting glucose >6.9mmol/L or postprandial glucose >11.1mmol/L. In addition, the family history for diabetes and the Karnofsky performance score were assessed. Height, weight, waist circumference, oxygen saturation, blood pressure, temperature and heart rate were measured. Glycosylated haemoglobin A1c (gHbA1c), C-reactive protein, leucocytes, urea and arterial blood gas values were analysed. ResultsEighty-two per cent of the patients demonstrated hyperglycaemia, with similar prevalence between asthma and COPD. Of the 130 patients without a previous diagnosis of diabetes, 79% showed hyperglycaemia. In binary logistic regression analysis, high gHbA1c, high C-reactive protein and Karnofsky score less than 80% associated with the presence of fasting hyperglycaemia. High gHbA1c and current smoking associated with postprandial hyperglycaemia. ConclusionsHyperglycaemia is very common among hospitalised patients with an exacerbation of asthma or COPD. It is probably triggered by the medication and the patient's metabolic predisposition mainly determines its presence. Current smoking is the main treatable contributor to hyperglycaemia.
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