Why the study?
Does an abnormal Microvolt T-wave alternans (MTWA) test predict cardiac death or ventricular tachyarrhythmic events in primary prevention patients with ischemic and nonischemic cardiomyopathy?
Does an abnormal Microvolt T-wave alternans (MTWA) test predict cardiac death or ventricular tachyarrhythmic events in primary prevention patients with ischemic and nonischemic cardiomyopathy?
An abnormal MTWA test is associated with an approximately 2.5-fold higher risk of cardiac death and life-threatening arrhythmias, with a very high negative predictive value in both ischemic and nonischemic cardiomyopathy patients.
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High NPV may identify low-risk cardiomyopathy patients for deferred ICDs; confirms MTWA prognostic value with ~2.5-fold risk elevation.
Calò et al. (2011) studied this question.
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