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Diabetes mellitus is a strong negative prognostic factor in patients with myocardial infarction treated with

L E Strandberg1, C G Ericsson, M L O'Konor

  • 1Department of Internal Medicine, Norrtälje Hospital, Stockholm, Sweden.

Journal of Internal Medicine
|August 18, 2000
PubMed

Insights

Diabetes mellitus and reduced ejection fraction are key long-term risk factors for patients experiencing myocardial infarction after thrombolysis. Age also remains a significant predictor of adverse outcomes in this population.

Area of Science:

  • Cardiology
  • Internal Medicine
  • Public Health

Background:

  • Acute myocardial infarction (AMI) remains a leading cause of morbidity and mortality worldwide.
  • Thrombolysis is a critical treatment for AMI, but long-term prognosis varies significantly among patients.
  • Identifying reliable prognostic factors is essential for optimizing patient management and risk stratification.

Purpose of the Study:

  • To evaluate the long-term prognostic significance of baseline demographic data, vectorcardiographic signs of reperfusion, left ventricular function, and coronary angiographic features.
  • To identify independent predictors of death or recurrent myocardial infarction in patients treated with thrombolysis for AMI.

Main Methods:

  • A longitudinal study involving 222 patients with suspected AMI treated with thrombolysis.
  • Patients were followed for 2-5 years, with primary outcome measures including death or a new myocardial infarction.
  • Data collected included baseline demographics, left ventricular ejection fraction, and coronary angiography.

Main Results:

  • Univariate analysis identified age >55, diabetes mellitus, hypertension, heart failure, prior myocardial infarction, beta-blocker use, and ejection fraction <60% as significant predictors.
  • In multivariate analysis, only age >55, diabetes mellitus, and ejection fraction <60% remained significant predictors of adverse outcomes.
  • Vectorcardiographic signs of reperfusion and coronary artery disease severity did not show prognostic value.

Conclusions:

  • Diabetes mellitus is a critical long-term prognostic risk factor in patients with myocardial infarction treated with thrombolysis.
  • Reduced ejection fraction and older age are also important predictors of long-term outcomes.
  • Further research is warranted to elucidate the mechanisms underlying the increased risk associated with diabetes mellitus in this patient cohort.
Abstract

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