LBBB IDCM (n = 26)

Non-LBBB IDCM (n = 75)

P value

Age (year)

41.8 ± 18.1

35.6 ± 18.7

0.15

Male (%)

Female (%)

5 (19.2%)

21 (80.8%)

42 (56%)

33 (44%)

0.03

BSA

1.78 ± 0.43

1.69 ± 0.52

0.33

Familial (%)

1 (4%)

16 (21%)

Symptoms

2.04 ± 0.73

2.21 ± 0.71

0.34

Functional class (%)

NYHA I

NYHA II

NYHA III

NYHA IV

7 (21.2%)

31 (45.5%)

11 (33.3%)

0

31 (14.2%)

9 (64.3%)

2 (14.3%)

1 (7.1%)

0.16

HR (b/min)

88.7 ± 16.9

90.9 ± 19.5

0.62

SBP (mmHg)

108 ± 19

114 ± 15

0.18

DBP (mmHg)

72 ± 13

73 ± 11

0.96

LA diameter (mm)

44.78 ± 9.95

44.96 ± 11.15

0.94

LA volume (ml)

73.91 ± 30.35

76.18 ± 46.61

0.82

ESD (mm)

60.46 ± 12.88

53.62 ± 13.34

0.03

EDD (mm)

71.80 ± 12.46

64.48 ± 13.40

0.02

EF %

31.77 ± 12.63

35.09 ± 13.16

0.27

FS %

15.85 ± 6.79

17.67 ± 7.53

0.28

Septum (mm)

9.26 ± 1.77

8.96 ± 2.53

0.58

LVPW (mm)

8.48 ± 1.83

8.31 ± 2.34

0.75

LVM (gm)

364 ± 149

312 ± 168

0.17

LVMI (gm/m²)

207 ± 78

176 ± 77

0.08

Mitral regurge:

No

Mild

Moderate

Severe

13 (50.0%)

0 (0.0)

6 (23.1%)

7 (26.9%)

38 (50.7%)

1 (1.3%)

22 (29.3%)

14 (18.7%)

0.74

Tricuspid regurg:

No

Mild

Moderate

Severe

12 (46.1)

8 (30.8)

4 (15.4)

2 (7.7)

33 (44%)

28 (37.3)

10 (13.3%)

4 (5.4%)

0.92

E (mm)

74.48 ± 30.67

79.66 ± 26.72

0.44

A (mm)

50.09 ± 24.00

50.52 ± 21.09

0.94

E/A

1.92 ± 1.35

1.98 ± 1.32

0.86

PAP (mmHg)

39.6 ± 11

33.11 ± 12

0.03

DT (ms)

150 ± 62.5

147.5 ± 52.6

0.85

E' (cm/s)

8.34 ± 3.9

9.48 ± 4.76

0.32

A' (cm/s)

74.5 ± 30.7

80.3 ± 25.9

0.38

E/E'

11.61 ± 8.73

9.75 ± 4.98

0.23