Why the study?
Does ambulatory ECG-based frequency domain T-wave alternans (FD-TWA) identify patients with an ICD at high risk for ventricular tachyarrhythmias?
Population
41 patients with an implantable cardioverter defibrillator, including 14 with a past history of at least one…
Comparison
Ambulatory ECG-based frequency domain T-wave… vs Negative FD-TWA, modified moving average method…
Design
Cross-sectional
Authors
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FD-TWA positivity was associated with higher appropriate ICD discharge; hypothesis-generating for risk stratification and requires prospective validation.
Does ambulatory ECG-based frequency domain T-wave alternans (FD-TWA) identify patients with an ICD at high risk for ventricular tachyarrhythmias?
Ambulatory ECG-based frequency domain T-wave alternans, especially when combined with heart rate variability, may help identify ICD patients at high risk for ventricular tachyarrhythmias.
Kawasaki et al. (2015) studied this question.
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