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Assessment of ECG Criteria for the Diagnosis of Right Ventricular Involvement

Suhaib Al-Mashari1, Reem Al-Habsi2, Amal Al-Habsi2

  • 1Department of Clinical Physiology, Sultan Qaboos University Hospital, Muscat, Oman.

Oman Medical Journal
|January 27, 2025
PubMed

Insights

Standard electrocardiogram (ECG) criteria show limited accuracy in diagnosing right ventricular (RV) involvement during inferior myocardial infarction (IMI). While combining ECG criteria increases detection, it also raises false positives, necessitating careful interpretation for accurate RV assessment.

Area of Science:

  • Cardiology
  • Diagnostic Imaging

Background:

  • Inferior myocardial infarction (IMI) can involve the right ventricle (RV).
  • Accurate diagnosis of RV involvement is crucial for patient management.

Purpose of the Study:

  • To evaluate the diagnostic accuracy of standard electrocardiogram (ECG) criteria for detecting RV involvement in patients with IMI.
  • To identify the most sensitive and specific ECG indicators of RV involvement.

Main Methods:

  • Retrospective analysis of 129 patients with inferior ST-elevation myocardial infarction.
  • RV involvement defined by proximal right coronary artery occlusion on angiography.
  • Assessment of various ECG criteria, including ST elevation in V4R, V1, and lead III vs. lead II.

Main Results:

  • No single ECG criterion accurately identified all RV involvement cases.
  • ST elevation in V4R (72.9%) and lead III > lead II (80.4%) were most sensitive.
  • ST elevation in V1 (88.7%) and V1 with ST depression in V2 (97.1%) were most specific.
  • Combining criteria improved sensitivity (85.7%) but decreased specificity (21.2%).

Conclusions:

  • Standard ECG criteria have limitations in diagnosing RV involvement in IMI.
  • Combined ECG criteria increase detection but also false positives, requiring cautious interpretation.
Abstract

Keywords:
ElectrocardiogramInferior Myocardial InfarctionOmanRight Ventricular InfarctionRight Ventricular Involvement

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