Key result
Each 3-point increase in the Selvester QRS score was associated with increased odds of inducing monomorphic ventricular tachycardia (OR 2.2; 95% CI 1.5-3.2; P<0.001).
Why the study?
Does the modified Selvester QRS score accurately identify myocardial scar and predict inducible ventricular tachycardia in patients with cardiomyopathy and LVEF ≤35%?
Observational (n=162)
Does the modified Selvester QRS score accurately identify myocardial scar and predict inducible ventricular tachycardia in patients with cardiomyopathy and LVEF ≤35%?
Effect estimate: OR 2.2 (95% CI 1.5 to 3.2)
p-value: p=<0.001
The modified Selvester QRS score accurately quantifies myocardial scar and predicts inducible ventricular tachycardia in patients with ischemic and nonischemic cardiomyopathy, even in the presence of ECG confounders.
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Supports QRS score for VT risk stratification in cardiomyopathy; leaves open prospective validation before clinical adoption.
Strauss et al. (2008) conducted an observational in Ischemic and nonischemic cardiomyopathy (n=162). Selvester QRS score vs. Cardiac magnetic resonance using late-gadolinium enhancement was evaluated on Inducible sustained monomorphic ventricular tachycardia per 3-point QRS-score increase (OR 2.2, 95% CI 1.5 to 3.2, p=<0.001). Each 3-point increase in the Selvester QRS score was associated with increased odds of inducing monomorphic ventricular tachycardia (OR 2.2; 95% CI 1.5-3.2; P<0.001).
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