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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
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Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

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Advanced Electrocardiography Identifies Left Ventricular Systolic Dysfunction in Non-Ischemic Cardiomyopathy and

Kerryanne Johnson1, Stacey Neilson2, Andrew To3

  • 1North Shore hospital, Waitemata District Health Board, Takapuna, 0620 Auckland, New Zealand. kerryannejohnson@hotmail.com.

Journal of Cardiovascular Development and Disease
|January 27, 2018
PubMed

Insights

Advanced ECG (A-ECG) accurately detects left ventricular systolic dysfunction (LVSD) with high sensitivity and specificity. Serial A-ECG scoring can track changes in LVSD, offering a valuable tool where echocardiography is limited.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Conventional electrocardiograms (ECG) have limited specificity for detecting left ventricular systolic dysfunction (LVSD).
  • Advanced ECG (A-ECG) utilizes multiparameter scoring for enhanced diagnostic utility in cardiac pathologies.

Purpose of the Study:

  • To evaluate the diagnostic utility of A-ECG for detecting LVSD in patients with non-ischemic cardiomyopathy (NICM).
  • To assess the agreement between A-ECG score changes and echocardiographic measures of LV ejection fraction over time.

Main Methods:

  • A case-control study involving 40 patients with LVSD and 39 controls.
  • Application of a validated probabilistic A-ECG score to standard 12-lead ECGs.
  • Analysis of serial ECGs and echocardiograms in a subset of patients to assess score trajectory agreement.

Main Results:

  • A-ECG achieved 95% sensitivity and 95% specificity for LVSD detection.
  • Excluding left bundle branch block (LBBB) cases, sensitivity remained high at 93%, improving to 97% with serial ECGs.
  • A-ECG score trajectories showed 76% agreement with echocardiographic changes in LVSD status.

Conclusions:

  • A-ECG scoring demonstrates high accuracy in detecting LVSD due to NICM.
  • Serial A-ECG scoring provides an inexpensive method to monitor changes in LVSD.
  • A-ECG is a valuable tool, particularly in resource-limited settings or as a pre-screening method for echocardiography.

Keywords:
advanced ECGechocardiographyleft ventricular systolic dysfunctionnon-ischemic cardiomyopathy

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