Why the study?
Clinical associations between echocardiography, ECG, and biomarkers remain unknown, and factors related to elevated QRS intervals in patients at risk for coronary artery disease needed identification.
Does >50% coronary artery stenosis associate with prolonged QRS intervals and reduced ventricular function in patients at risk for coronary artery disease?
Population
503 patients with risk for coronary artery disease
Comparison
Coronary artery stenosis >50% vs <50%
Design
Post hoc analysis
Authors
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Significant CAD stenosis associated with prolonged QRS and reduced EF/FS; leaves open whether QRS predicts arrhythmic events prospectively.
Does >50% coronary artery stenosis associate with prolonged QRS intervals and reduced ventricular function in patients at risk for coronary artery disease?
Significant coronary stenosis (>50%) is associated with prolonged QRS and QTc intervals and reduced ventricular function, suggesting an increased risk for arrhythmic events.
Tur et al. (2021) studied this question.
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