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New Validated Signal-averaging-based Electrocardiography Method to Determine His-ventricle Interval
Balázs Németh1,2, Lóránd Kellényi3, István Péterfi4
1Department of Public Health Medicine, Medical School, University of Pécs, Pécs, Hungary balazs.nemeth@aok.pte.hu.
In Vivo (Athens, Greece)
|November 6, 2016
Summary
A new portable device uses signal-averaging (SA) to measure cardiac micropotentials non-invasively. This system accurately determines the His-ventricle (HV) interval, correlating well with invasive electrophysiology methods.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Devices
Background:
- Signal-averaging (SA) is crucial for recording high-resolution electrocardiograms (HRECGs) that reveal cardiac micropotentials.
- Accurate measurement of cardiac electrophysiological intervals is essential for diagnosing heart conditions.
Purpose of the Study:
- To develop a portable, non-invasive device utilizing SA for His-ventricle (HV) interval determination.
- To validate the accuracy of the non-invasive HV interval measurement against invasive methods.
Main Methods:
- Developed a portable bedside device employing SA for HRECG analysis.
- Amplified HRECG signals for precise measurement of duration and voltage.
- Compared non-invasively determined HV intervals with invasively measured ones in 20 patients.
Main Results:
- The developed system successfully displays and measures cardiac micropotentials on storable ECGs.
- No significant deviations were found between non-invasive and invasive HV intervals using statistical tests (p=0.263, p=0.245).
- A strong correlation (corr=0.910, p<0.001) was observed between non-invasive and invasive HV interval measurements.
Conclusions:
- An easy-to-use, validated device for determining HV intervals has been developed.
- The non-invasive system is suitable for clinical use, including ambulatory monitoring.
- This technology offers a reliable alternative for assessing cardiac conduction times.
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