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[Various rhythmologic precursors of terminal arrhythmia in patients with myocardial infarct]
Insights
Researchers identified a near one-hour ultradian cardiac rhythm in acute myocardial infarction patients. This cardiac rhythm pattern, detected via ECG and Holter monitoring, may predict terminal arrhythmias.
Area of Science:
- Cardiology
- Medical Technology
Background:
- Acute myocardial infarction (AMI) poses significant risks, including life-threatening arrhythmias.
- Early detection of arrhythmia risk is crucial for patient management.
Purpose of the Study:
- To investigate the presence and characteristics of ultradian cardiac rhythms in AMI patients.
- To develop a classification system for these rhythms and identify phases predictive of critical events.
Main Methods:
- 24-hour Holter monitoring was performed on 24 patients with AMI.
- Electrocardiogram (ECG) data were analyzed to identify ultradian rhythms.
- Autocorrelation analysis of cardiac rhythm function was used for phase classification.
Main Results:
- A near one-hour ultradian cardiac rhythm was detected in AMI patients.
- A classification system identified distinct phases, including a critical phase with high arrhythmia probability and a preceding threatening phase.
- Variational structure peculiarities in the threatening phase were observed.
Conclusions:
- Ultradian cardiac rhythms represent a potential biomarker for arrhythmia risk in AMI.
- The identified critical and threatening phases warrant further investigation for clinical application.
- Understanding the physical prerequisites of these phases may improve predictive capabilities.
Abstract:
The presence of near one hour ultradian cardiac rhythm was revealed on the ECG of 24 patients with acute myocardial infarction during 24-hour Holter monitoring. A classification of the phases of near one hour rhythm was developed according to the first coefficient value of autocorrelation of cardiac rhythm function. Special attention was attracted to the critical phase indicating high probability of the development of terminal arrhythmia and the threatening phase preceding it. Peculiarities of the variational structure of cardiac rhythm in the threatening phase and physical prerequisites of its origination are discussed.