August 15, 2026Circulation312 citations
Standards for analysis of ventricular late potentials using high-resolution or signal-averaged electrocardiography. A statement by a Task Force Committee of the European Society of Cardiology, the American Heart Association, and the American College of Cardiology.
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Key Result
High-resolution or signal-averaged electrocardiography helps determine the risk of sustained ventricular tachyarrhythmias in patients recovering from myocardial infarction without bundle branch block.
Key Points
- To establish standardized recommendations for utilizing high-resolution and signal-averaged electrocardiography to evaluate ventricular late potentials and stratify arrhythmic risk.
- Expert consensus evaluation conducted by a Joint Task Force Committee of the European Society of Cardiology, the American Heart Association, and the American College of Cardiology.
- Signal-averaged electrocardiography is recommended to assess the risk of sustained ventricular tachyarrhythmias in patients recovering from myocardial infarction without bundle branch block.
- Evidence is currently absent regarding whether pharmacological or nonpharmacological interventions in patients exhibiting late potentials reduce the incidence of sudden cardiac death, requiring prospective controlled trials.
Structured PICO
Does high-resolution or signal-averaged electrocardiography help determine the risk for developing sustained ventricular tachyarrhythmias in patients recovering from myocardial infarction without bundle branch block?
P
Population
Patients recovering from myocardial infarction without bundle branch block
I
Intervention
High-resolution or signal-averaged electrocardiogram
O
Outcome
Risk for developing sustained ventricular tachyarrhythmias
This consensus statement recommends high-resolution or signal-averaged ECG for risk stratification of sustained ventricular tachyarrhythmias in post-MI patients without bundle branch block.
Limitations
- No data are available about the extent to which pharmacological or nonpharmacological interventions in patients with late potentials have an impact on the incidence of sudden cardiac death.
- No data available about the extent to which pharmacological or nonpharmacological interventions in patients with late potentials have an impact on the incidence of sudden cardiac death
Abstract
Sufficient data are available to recommend the use of the high-resolution or signal-averaged electrocardiogram in patients recovering from myocardial infarction without bundle branch block to help determine their risk for developing sustained ventricular tachyarrhythmias. However, no data are available about the extent to which pharmacological or nonpharmacological interventions in patients with late potentials have an impact on the incidence of sudden cardiac death. Therefore, controlled, prospective studies are required before this issue can be resolved. As refinements in techniques evolve, it is anticipated that the clinical value of high-resolution or signal-averaged electrocardiography will continue to increase.