Key result
Exercise-induced ischemia in patients with coronary artery disease resulted in significantly lower regression line slopes of the QRS power spectrum after peak exercise compared to healthy controls.
Why the study?
Does spectral analysis of the high-resolution QRS complex during exercise testing detect ischemia in patients with CAD compared to healthy subjects?
Population
62 male subjects, comprising 32 patients with coronary artery disease with arteriographically proven >75%…
Comparison
Treadmill exercise testing with spectral… vs Healthy subjects without history or symptoms of…
Design
Case-control
Authors
Loading...
Post-exercise QRS spectral slopes may aid ischemia detection in CAD; extends high-resolution ECG utility beyond ST-segment analysis.
Case-Control (n=62)
Does spectral analysis of the high-resolution QRS complex during exercise testing detect ischemia in patients with CAD compared to healthy subjects?
Beker et al. (1996) conducted a case-control in Coronary Artery Disease (n=62). Coronary artery disease (exercise-induced ischemia) vs. Healthy subjects was evaluated on Regression line slopes of the power spectrum of the averaged QRS waveform immediately after peak exercise. Exercise-induced ischemia in patients with coronary artery disease resulted in significantly lower regression line slopes of the QRS power spectrum after peak exercise compared to healthy controls.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: