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The relationship between the electrocardiographic pattern with TIMI flow class and ejection fraction in patients with

J Kusniec1, A Solodky, B Strasberg

  • 1Department of Cardiology, Rabin Medical Center, Petah Tiqva, Israel.

European Heart Journal
|March 1, 1997
PubMed

Insights

Electrocardiogram findings of an isoelectric ST segment and negative T wave predict a patent left anterior descending artery after acute anterior myocardial infarction. This ECG pattern also correlates with improved left ventricular function.

Area of Science:

  • Cardiology
  • Diagnostic Imaging
  • Internal Medicine

Background:

  • Acute anterior wall myocardial infarction (MI) is a critical cardiovascular event.
  • Assessing left anterior descending (LAD) artery patency and left ventricular ejection fraction (LVEF) is crucial for patient outcomes.
  • Electrocardiogram (ECG) is a readily available diagnostic tool.

Purpose of the Study:

  • To evaluate the predictive value of ECG findings for LAD artery patency.
  • To assess the correlation between specific ECG patterns and LVEF in patients post-anterior MI.
  • To determine the utility of discharge ECG in predicting coronary artery status.

Main Methods:

  • 116 patients with first acute anterior MI were studied.
  • Coronary angiography and left ventriculography were performed before discharge.
  • ECG parameters (ST segment, T wave in V2-V4) were analyzed and compared with TIMI flow and LVEF.

Main Results:

  • Isoelectric ST segments and negative T waves on ECG were associated with a higher incidence of TIMI flow 3 (patent LAD artery).
  • Patients with ST segment elevation and positive T waves showed significantly lower rates of TIMI flow 3.
  • Isoelectric ST segments correlated with a better left ventricular ejection fraction (57.8% vs 41.7%).

Conclusions:

  • ECG patterns of isoelectric ST segment and negative T wave are valuable predictors of LAD artery patency in acute anterior MI.
  • These ECG findings also indicate preserved left ventricular function.
  • Discharge ECG can provide prognostic information regarding coronary artery patency and cardiac function.
Abstract

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