Discussing heart rate turbulence and microvolt T-wave alternans in patients after myocardial infarction: Response

We thank Dr Madias for his interest to our manuscript. In response to his question about our patient series, all consecutive patients who were admitted to our clinic due to chronic heart failure or coronary artery disease deterioration were included into the study. As for heterogeneity of the population regarding time elapsed from myocardial infarction (MI), we intentionally did not use the pre-specified time interval from the previous MI to the moment of inclusion in our study as an inclusion criterion, because we intended to analyse the possible influence of this variable on investigated parameters [microvolt T-wave alternans (mTWA) and heart rate turbulence (HRT)]. This analysis indicated that mTWA …