Key result
High-fidelity electrocardiography measuring peak-to-peak voltage of residual signals provided only partial separation between normal subjects and those following myocardial infarction.
Why the study?
Does high-fidelity electrocardiography with variable band-pass filtering effectively separate normal subjects from those following myocardial infarction?
Population
Normal individuals and subjects following myocardial infarction
Comparison
High-fidelity electrocardiography utilizing a… vs Normal subjects compared to subjects following…
Design
Cross-sectional
Authors
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Peak-to-peak voltage yields only partial separation now; leaves open whether high-fidelity ECG improves post-MI detection in prospective studies.
Observational
Does high-fidelity electrocardiography with variable band-pass filtering effectively separate normal subjects from those following myocardial infarction?
High-fidelity electrocardiography reveals high-frequency energy differences between normal and post-MI subjects, though peak-to-peak voltage alone does not clearly separate the groups for routine clinical diagnosis.
Langner et al. (1960) conducted an observational in Myocardial infarction. High-fidelity electrocardiography (wide-band recorder with filters) was evaluated on Frequency spectrum characteristics and peak-to-peak voltage of residual signals. High-fidelity electrocardiography measuring peak-to-peak voltage of residual signals provided only partial separation between normal subjects and those following myocardial infarction.
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