Why the study?
Does the severity of coronary artery disease and left ventricular dysfunction correlate with QT-interval prolongation in patients with suspected CAD?
Population
304 patients catheterized because of suspected coronary artery disease
Design
Cross-sectional
Authors
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QTc variability limits individual CAD risk stratification; leaves open additive prognostic value beyond EF in observational data.
Does the severity of coronary artery disease and left ventricular dysfunction correlate with QT-interval prolongation in patients with suspected CAD?
Prolongation of the QTc interval correlates with severe coronary artery disease and impaired left ventricular function, though high interindividual variability limits its prognostic utility for individual patients.
Krämer et al. (1986) studied this question.
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