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Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction
14:19

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

Published on: October 14, 2016

Prognostic value of the admission electrocardiogram in acute coronary syndromes

S Savonitto1, D Ardissino, C B Granger

  • 1Department of Cardiology A. De Gasperis, Ospedale Niguarda Cá Granda, Milan, Italy. ssavoni@tin.it

JAMA
|March 3, 1999
PubMed

Insights

Electrocardiogram (ECG) findings in acute myocardial ischemia predict patient outcomes. ST-segment elevation or depression on ECG, along with elevated creatine kinase levels, indicate a higher risk of death or reinfarction.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Electrocardiogram (ECG) changes in acute chest pain correlate with adverse patient outcomes.
  • Immediate risk stratification is crucial for managing acute coronary syndromes.

Purpose of the Study:

  • To evaluate the prognostic significance of various electrocardiogram (ECG) presentations in acute myocardial ischemia.
  • To assess the predictive value of ECG findings for 30-day mortality or myocardial reinfarction.

Main Methods:

  • Retrospective analysis of 12,142 patients from the GUSTO-IIb trial.
  • Categorization of presenting ECGs into T-wave inversion, ST-segment elevation, ST-segment depression, or combined changes.
  • Multivariate analysis adjusting for baseline risk factors.

Main Results:

  • Patients with ST-segment elevation (9.4%), ST-segment depression (10.5%), or combined changes (12.4%) had significantly higher rates of 30-day death or reinfarction compared to T-wave inversion (5.5%).
  • Adjusted odds ratios for 30-day death/reinfarction were 1.68 for ST-segment elevation, 1.62 for ST-segment depression, and 2.27 for combined changes.
  • Elevated admission creatine kinase levels independently predicted higher risk of death and reinfarction.

Conclusions:

  • Presenting ECG findings enable immediate risk stratification in acute coronary syndromes.
  • Elevated admission creatine kinase levels are associated with poorer prognosis.
Abstract

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