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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

Prognostic significance of electrocardiographic change during anginal attack in patients with unstable angina

M Saitoh1, K Matsuo, S Nomoto

  • 1Department of Internal Medicine, Nishio Municipal Hospital.

Internal Medicine (Tokyo, Japan)
|June 1, 2000
PubMed

Insights

ST depression during anginal attacks is a significant predictor of future cardiac events in unstable angina patients. This electrocardiographic change, unlike C-reactive protein or fibrinogen levels, independently signals increased risk.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Diagnostic Markers

Background:

  • Unstable angina (UA) poses a significant risk for adverse cardiac events.
  • Identifying reliable prognostic markers in UA is crucial for patient management.

Purpose of the Study:

  • To evaluate the prognostic value of electrocardiographic (ECG) changes during anginal attacks.
  • To assess the predictive significance of C-reactive protein (CRP) and fibrinogen levels in UA patients.

Main Methods:

  • Prospective study of 169 patients with unstable angina.
  • 90-day follow-up for new cardiac events (death, myocardial infarction, urgent revascularization).
  • Multivariate analysis to identify independent risk factors.

Main Results:

  • ST depression during anginal attack emerged as an independent predictor of cardiac events (RR 7.507, p<0.01).
  • Diabetes mellitus, elevated total cholesterol, and thrombolytic agent use were also significant risk factors.
  • C-reactive protein and fibrinogen levels did not demonstrate prognostic significance.

Conclusions:

  • ST depression during anginal attack is a valuable independent risk predictor for new cardiac events in unstable angina.
  • ECG monitoring during angina provides critical prognostic information.
  • CRP and fibrinogen are not reliable prognostic markers in this UA cohort.
Abstract

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