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Diabet Med. 2005 Oct;22(10):1321-5.

The association between hyperglycaemia on admission and 180-day mortality in acute myocardial infarction patients with and without diabetes.

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1
Department of Cardiology, University of Tartu, Tartu, Estonia. Tiia.Ainla@kliinikum.ee

Abstract

AIM:

To evaluate the association between hyperglycaemia on admission, previously known diabetes and 180-day mortality in acute myocardial infarction (AMI) patients.

METHODS:

The study population consisted of 779 consecutive AMI patients from the Myocardial Infarction Registry in Estonia who had an admission venous plasma glucose level recorded and who were admitted to the Tartu University Clinics within a period of 2 years. Logistic regression analysis was used to estimate crude and adjusted odds ratios (OR) with 95% confidence interval (95% CI).

RESULTS:

In patients without a history of diabetes, glucose level was < or = 11.0 mmol/l in 556 patients (group 1) and > 11.0 mmol/l in 109 patients (group 2). Of those with diabetes, glucose level was < or = 11.0 mmol/l in 30 patients (group 3) and > 11.0 mmol/l in 84 patients (group 4). Non-diabetic hyperglycaemic patients underwent more resuscitations outside of hospital (group 2, 31.2% vs. group 1, 2.0% vs. group 3, 6.7% vs. group 4, 6.0%, P < 0.0001) and had a higher 180-day mortality compared with other groups (group 2, 47.7% vs. group 1, 14.1% vs. group 3, 26. 7% vs. group 4, 29.8%, P < 0.0001). After adjustment for potentially confounding factors, hyperglycaemic non-diabetic (OR 4.35, 95% CI 1.79-10.59), but not diabetic (OR 1.79, 95% CI 0.62-5.15) status, remained an independent predictor of 180-day mortality.

CONCLUSIONS:

AMI patients with hyperglycaemia on admission, independent of a history of diabetes, represent a high-risk population for 180-day mortality. The worst outcome occurs in non-diabetic hyperglycaemic patients. Further studies are warranted to clarify the questions of hyperglycaemia treatment in AMI patients.

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