Key result
The QRS score yielded a higher predictive accuracy for detecting coronary artery disease than conventional ST-segment depression (87.1% vs 64.5%, P<0.001).
Why the study?
Does the QRS score improve the diagnostic accuracy for detecting coronary artery disease compared to conventional ST-segment depression during exercise testing?
Population
175 individuals, comprising 53 normal subjects, 102 patients with documented coronary artery disease, and an…
Comparison
QRS score derived from a symptom-limited… vs Conventional ST-segment depression and other…
Design
Cross-sectional
Authors
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QRS score may enhance CAD detection on exercise testing; hypothesis-generating and requires prospective validation before practice change.
Cross-Sectional (n=175)
Does the QRS score improve the diagnostic accuracy for detecting coronary artery disease compared to conventional ST-segment depression during exercise testing?
Absolute Event Rate: 87.1% vs 64.5%
p-value: p=<0.001
The QRS score during exercise testing provides significantly higher diagnostic accuracy for detecting coronary artery disease compared to conventional ST-segment depression.
Campen et al. (1996) conducted a cross-sectional in Coronary artery disease (n=175). QRS score vs. ST-segment depression was evaluated on Predictive accuracy for coronary artery disease (p=<0.001). The QRS score yielded a higher predictive accuracy for detecting coronary artery disease than conventional ST-segment depression (87.1% vs 64.5%, P<0.001).
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