Circulation Journal
Online ISSN : 1347-4820
Print ISSN : 1346-9843
ISSN-L : 1346-9843
Clinical Investigation
Impact of Newly Diagnosed Abnormal Glucose Tolerance on Long-Term Prognosis in Patients With Acute Myocardial Infarction
Koichi TamitaMinako KatayamaTsutomu TakagiTakashi AkasakaAtsushi YamamuroShuichiro KajiShigefumi MoriokaYasuki Kihara
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2007 Volume 71 Issue 6 Pages 834-841

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Abstract

Background Newly-diagnosed diabetes mellitus (DM) and impaired glucose tolerance are common among patients with acute myocardial infarction (AMI). However, its significance on long-term clinical outcomes in those patients remains unclear. The present study was designed to determine whether such abnormalities after AMI affect long-term clinical outcomes. Methods and Results Two-hundred and seventy-five AMI patients were prospectively enrolled. Eighty-five had diagnosed DM, while the other 190 did not. According to oral glucose tolerance tests at discharge, non-DM patients were divided into 2 groups: 78 patients with normal glucose tolerance and 112 patients with abnormal glucose tolerance. Patients were followed until they reached the primary endpoint: cardiovascular death or unplanned hospitalization due to major adverse cardiovascular events. The median follow-up period was 5.3 years. Kaplan-Meier survival curves for the abnormal glucose tolerance group were poorer than for normal glucose tolerance, and were equivalent to the pre-diagnosed DM group in prognosis (p<0.0005). Glucometabolic status was the strongest predictor for future cardiovascular events (hazard ratio to normal glucose tolerance; 2.65; confidence interval: 1.37-5.15; p=0.004 in abnormal glucose tolerance and 3.27:1.68-6.38; p=0.0005 in DM). Conclusions Abnormal glucose tolerance in patients with AMI is a major risk factor for future cardiovascular events and may critically distinguish high-risk individuals. (Circ J 2007; 71: 834 - 841)

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© 2007 THE JAPANESE CIRCULATION SOCIETY
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