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Table 2 The comparison of QRS interval, QTc interval and R wave between ApHCM and NSTEACS in ECG

From: Usefulness of ECG to differentiate apical hypertrophic cardiomyopathy from non-ST elevation acute coronary syndrome

 

ApHCM (n = 41)

NSTEACS (n = 72)

P-value

QRS interval (ms)

97.26 ± 11.20

95.69 ± 14.54

0.174

QTc interval (ms)

441.24 ± 26.34

438.75 ± 43.53

0.254

R wave in I (mV)

1.31 ± 0.42

0.83 ± 0.39

<  0.001

R wave in II (mV)

1.55 ± 1.42

0.66 ± 0.40

<  0.001

R wave in III (mV)

0.48 ± 0.43

0.26 ± 0.23

0.004

R wave in aVR (mV)

0.11 ± 0.12

0.10 ± 0.12

0.299

R wave in aVL (mV)

0.73 ± 0.45

0.60 ± 0.36

0.121

R wave in aVF (mV)

0.72 ± 0.47

0.38 ± 0.28

<  0.001

R wave in V1 (mV)

0.33 ± 0.35

0.22 ± 0.28

0.029

R wave in V2 (mV)

1.51 ± 0.86

0.71 ± 0.70

<  0.001

R wave in V3 (mV)

2.38 ± 1.04

1.03 ± 0.73

<  0.001

R wave in V4 (mV)

3.10 ± 1.13

1.33 ± 0.76

<  0.001

R wave in V5 (mV)

3.13 ± 1.08

1.38 ± 0.73

<  0.001

R wave in V6 (mV)

2.45 ± 0.95

1.20 ± 0.66

<  0.001

  1. Abbreviation: ApHCM Apical hypertrophic cardiomyopathy, NSTEACS Non-ST elevation acute coronary syndrome