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Ambulatory (Holter) electrocardiography signal-averaging: a current perspective
H L Kennedy1, N S Bavishi, T A Buckingham
1Department of Internal Medicine, Rush Heart Institute, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612-3864.
American Heart Journal
|November 1, 1992
Summary
Signal-averaging of ambulatory electrocardiograms (ECG) offers a cost-effective method for detecting ventricular late potentials. Further research is needed to establish its clinical utility and diagnostic criteria.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Ambulatory electrocardiography (ECG) is increasingly used for signal-averaging.
- High-resolution ECG signal-averaging can detect ventricular late potentials, indicating arrhythmia risk.
Purpose of the Study:
- To compare real-time and ambulatory high-resolution ECG signal-averaging techniques.
- To review early clinical studies on QRS complex parameters and late potential detection.
Main Methods:
- Review of technical differences between real-time and ambulatory signal-averaging.
- Analysis of clinical studies correlating QRS parameters and late potential detection.
Main Results:
- Ambulatory signal-averaging shows potential cost-effectiveness.
- Technical differences exist between real-time and ambulatory methods.
Conclusions:
- Ambulatory ECG signal-averaging is a promising, cost-effective tool.
- Further investigation is required to define clinical applications and diagnostic criteria.