Letter regarding 'Assessment of physiological amplitude, duration and magnitude of ECG T-wave alternans'.

摘要

In their paper published in the October issue of this journal, Burattini et al. raise an interesting question, namely, is T-wave alternans (TWA) present at "physiological levels" in healthy subjects?1 They set out to answer this question by using the adaptive match filter (AMF) method, previously described by them, to measure TWA in a group of healthy subjects.