Skip to main content

Table 2 Clinical outcomes in patients with different LVEF value

From: Left ventricular ejection fraction is a determinant of cardiac performance after long-term conduction system pacing in patients with left bundle branch block?

 

Total (n = 74)

LVEF < 25% (n = 32)

LVEF25-35% (n = 42)

P

Initial QRSd (ms)

165.78 ± 19.73

168.75 ± 21.52

163.52 ± 18.19

0.262

Final QRSd (ms)

113.16 ± 18.64

117.81 ± 17.09

109.62 ± 19.19

0.061

Initial NYHA Class

3.50 ± 0.52

3.59 ± 0.48

3.43 ± 0.55

0.180

Final NYHA Class

1.55 ± 0.62

1.78 ± 0.66

1.38 ± 0.54

0.005

Initial 6-MWD (m)

140.41 ± 18.09

137.81 ± 15.40

142.38 ± 19.85

0.269

Final 6-MWD (m)

373.51 ± 119.22

324.06 ± 128.34

411.19 ± 97.41

0.002

Initial LVEF (%)

25.15 ± 5.26

20.50 ± 2.75

28.69 ± 3.73

 < 0.001

Final LVEF (%)

42.55 ± 11.84

37.78 ± 13.04

46.19 ± 9.47

0.003

Initial LVEDD (mm)

65.81 ± 8.04

69.56 ± 6.77

62.95 ± 7.82

 < 0.001

Final LVEDD (mm)

56.26 ± 9.63

59.41 ± 11.00

53.86 ± 7.75

0.019

Initial LVESV (mL)

196.87 ± 58.03

224.81 ± 50.65

170.93 ± 52.77

 < 0.001

Final LVESV (mL)

103.02 ± 72.22

134.00 ± 83.35

70.89 ± 38.89

0.001

Response ratio, n (%)

61 (82.40%)

23 (71.90%)

38 (90.50%)

0.076

Super-response ratio, n (%)

53 (71.60%)

20 (62.50%)

33 (78.60%)

0.129

LV complete reverse remodeling, n (%)

25 (33.80%)

7 (21.90%)

18(42.90%)

0.059

Re-hospitalization, n (%)

24(32.40%)

15(46.90%)

9(21.40%)

0.021

  1. NYHA New York Heart Association, 6-MWD 6-min walk distance, LVEF Left ventricular ejection fraction, LVEDD Left ventricular end-diastolic diameter, LVESV Left ventricular end-systolic volume