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

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Prognostic and diagnostic accuracy of intracoronary electrocardiogram recorded during percutaneous coronary

Weijie Li1, Jialin He1, Jun Fan1

  • 1Department of Cardiology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China.

BMJ Open
|June 29, 2022
PubMed

Insights

Intracoronary ECG (IC-ECG) shows promise in detecting myocardial injury and predicting outcomes during percutaneous coronary intervention (PCI). This meta-analysis supports its diagnostic accuracy and prognostic value, suggesting wider clinical consideration.

Area of Science:

  • Cardiology
  • Medical Diagnostics
  • Interventional Cardiology

Background:

  • Intracoronary ECG (IC-ECG) is a potentially sensitive tool for assessing myocardial viability and ischemia.
  • Despite its potential, IC-ECG is not widely adopted during percutaneous coronary intervention (PCI) and lacks guideline recommendations.

Purpose of the Study:

  • To conduct a meta-analysis evaluating the prognostic and diagnostic accuracy of IC-ECG during PCI.
  • To provide quantitative data supporting the clinical utility of IC-ECG.

Main Methods:

  • Systematic search of MEDLINE for relevant observational and diagnostic studies up to June 2019.
  • Independent data extraction by two authors.
  • Random effects models for clinical outcomes and Bayesian bivariate random effects model for diagnostic accuracy.

Main Results:

  • Analysis of 12 studies (821 patients for outcomes, 485 for diagnostics).
  • IC-ECG ST-segment elevation was associated with increased odds of major adverse cardiac events (OR 4.65), myocardial infarction (OR 5.08), and cardiac death (OR 4.53).
  • Pooled sensitivity and specificity for ST-segment elevation were 0.78 and 0.87, respectively.

Conclusions:

  • IC-ECG demonstrates promising diagnostic capabilities for identifying local myocardial injury.
  • The findings support IC-ECG's potential role in predicting clinical outcomes following PCI.
Abstract

Keywords:
cardiologycoronary heart diseasecoronary intervention

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