Measurement | Pre-pacing | Post pacing at 1 week | Post pacing at 6 months | Test | P value |
---|---|---|---|---|---|
EDV (ml) | Fr | Â | |||
 Single-chamber | 102.6 ± 25.95 | 86.81 ± 25.09 | 88.93 ± 30.39 | 30.882* | <0.001* |
 Dual-chamber | 109.0 ± 22.91 | 93.43 ± 18.80 | 97.04 ± 19.62 | 19.089* | <0.001* |
Sig. bet. Periods | |||||
 Single-chamber | p1<0.001*, p2=0.002*, p3=0.338 |  |  | ||
 Dual-chamber | p1<0.001*, p2<0.001*, p3=0.307 |  |  | ||
ESV (ml) | F | Â | |||
 Single-chamber | 28.48 ± 9.67 | 28.96 ± 11.25 | 36.52 ± 21.87 | 4.411* | 0.017* |
 Dual-chamber | 34.43 ± 11.75 | 34.91 ± 12.24 | 44.65 ± 15.66 | 8.077* | 0.001* |
Sig. bet. Periods | |||||
 Single-chamber | p1=1.000 , p2=0.175, p3=0.040* |  |  | ||
 Dual-chamber | p1=1.000 , p2=0.018*, p3=0.004* |  |  | ||
SV (ml) | F | Â | |||
 Single-chamber | 74.07 ± 20.20 | 57.78 ± 17.47 | 52.56 ± 17.54 | 40.039* | <0.001* |
 Dual-chamber | 73.7 ± 17.35 | 58.52 ± 17.02 | 52.35 ± 13.13 | 33.559* | <0.001* |
Sig. bet. Periods | |||||
 Single-chamber | p1<0.001*,p2<0.001*,p3=0.018* |  |  | ||
 Dual-chamber | p1<0.001*,p2<0.001*,p3=0.048* |  |  | ||
HR (bpm) | F | Â | |||
 Single-chamber | 41.63 ± 8.45 | 64.04 ± 9.79 | 62.00 ± 6.45 | 186.913* | <0.001* |
 Dual-chamber | 41.83 ± 9.36 | 77.96 ± 10.85 | 76.43 ± 9.43 | 107.586* | <0.001* |
Sig. bet. Periods | |||||
 Single-chamber | p1<0.001*, p2<0.001*, p3=0.325 |  |  | ||
 Dual-chamber | p1<0.001*, p2<0.001*, p3=1.000 |  |  | ||
COP (L/m) | Fr | Â | |||
 Single-chamber | 3.07 ± 0.99 | 3.69 ± 1.13 | 3.27 ± 1.12 | 16.020* | <0.001* |
 Dual-chamber | 3.04 ± 0.90 | 4.48 ± 1.14 | 3.96 ± 1.04 | 30.776* | <0.001* |
Sig. bet. Periods | |||||
 Single-chamber | p1<0.001*,p2=0.247,p3=0.010* |  |  | ||
 Dual-chamber | p1<0.001*,p2=0.002*,p3=0.027* |  |  | ||
EF (%) | F | Â | |||
 Single-chamber | 72.41 ± 6.55 | 65.96 ± 8.41 | 59.56 ± 9.85 | 28.566* | <0.001* |
 Dual-chamber | 69.35 ± 8.46 | 60.74 ± 10.62 | 54.35 ± 10.04 | 26.749* | <0.001* |
Sig. bet. periods | |||||
 Single-chamber | p1<0.001*,p2<0.001*,p3=0.001* |  |  | ||
 Dual-chamber | p1<0.001*,p2<0.001*,p3=0.011* |  |  | ||
GLS (%) | F | Â | |||
 Single-chamber | -19.41 ± 3.53 | -15.44 ± 4.09 | -13.52 ± 4.66 | 62.924* | <0.001* |
 Dual-chamber | -19.65 ± 3.98 | -14.52 ± 4.39 | -13.13 ± 4.45 | 50.749* | <0.001* |
Sig. bet. periods | |||||
 Single-chamber | p1<0.001*, p2<0.001*, p3<0.001* |  |  | ||
 Dual-chamber | p1<0.001*, p2<0.001*, p3=0.001* |  |  |