Why the study?
Do different filtering techniques in signal-averaged ECG systems yield diagnostically equivalent results for P wave analysis in healthy volunteers and patients with paroxysmal atrial fibrillation?
Population
59 individuals, comprising normal healthy volunteers and patients with documented paroxysmal atrial…
Comparison
Signal-averaged ECG using different high-pass… vs Comparison between the different filtering…
Design
Cross-sectional
Authors
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Filter choice biases P-wave duration and accuracy in signal-averaged ECG; supports filter-specific norms but leaves open prospective validation for PAF detection.
Do different filtering techniques in signal-averaged ECG systems yield diagnostically equivalent results for P wave analysis in healthy volunteers and patients with paroxysmal atrial fibrillation?
Normality limits for signal-averaged P wave ECG are filter-dependent and must be established individually for different software settings.
VALVBRDE et al. (1998) studied this question.
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