Skip to main content

Table 1 Characteristics of enrolled patients twa values and HRT parameters

From: Ambulatory ECG-based T-wave alternans and heart rate turbulence can predict cardiac mortality in patients with myocardial infarction with or without diabetes mellitus

  Post-MI Post-MI + DM Group control  
  (N = 96) (N = 77) (N = 75) P value
Male gender 61(63.5%) 48(62.3%) 46(61.3%) P = 0.96
Age(years) 65 ± 10 66 ± 8 62 ± 9 P = 0.65
Hypertension 42(43.6%) 36(46.8%) 31(41.3%) P = 0.79
Heart Rate(bpm) 70 ± 9 69 ± 8 71 ± 9 P = 0.72
Medical therapies     
ACEI/ARB 75(78.1%)* 62(80.5%)* 10(13.3%) P < 0.05
β-blockers 74(77.1%) * 60(77.9%)* 8(9.4%) P < 0.05
Statins 81(84.4%) * 64(83.1%)* 11(14.6%) P < 0.05
Site of infarction     
Anterior 33(34.4%) 25(32.5%) P = 0.29
Lateral 29(30.2%) 27(35.1%) P = 0.79
Inferior 34(35.4%) 25(32.5%) P = 0.24
Coronary intervention 72(75.0%) 56(72.7%)) _ P = 0.74
Coronary bypass surgery 14(14.6%) 12(15.6%)) _ P = 0.69
LVEF (%) 46 ± 9* 45 ± 8* 59 ± 5 P < 0.05
TWA(μV) 52 ±18* 58 ± 21*† 37 ± 13 P < 0.05
TO(%) -0.71 ± 2.17* -1.03 ± 3.12* -2.43 ± 1.71 P < 0.05
TS(ms/RRI) 4.96 ± 4.75* 4.60 ± 4.71* 13.03 ± 4.84 P < 0.05
  1. * Post-MI patients with or without diabetes vs group control,P < 0.05.† Post-MI patients vs post-MI + DM patients, P < 0.05. ACEI/ARB, angiotensin-converting enzyme inhibitor/angiotensin-receptor blocker; LVEF, left ventricular injection fraction; TWA, T-wave alternans; HRT, heart rate turbulence; TO, turbulence onset; TS, turbulence slope.