Table 3.
Early change of hemodynamics in LBBP and RVSP groups
| Parameters | LBBP (n = 40) | RVSP (n = 38) | ||||
|---|---|---|---|---|---|---|
| native‐conduction | LBBP capture | P | native‐conduction | RVSP capture | P | |
| 2DE measurement data and Doppler variables | ||||||
| LA, mm | 37.20 ± 4.27 | 37.20 ± 4.09 | 1.000 | 35.55 ± 4.92 | 35.79 ± 4.86 | .163 |
| LVFT/RR interval (%) | 49.42 ± 5.66 | 46.93 ± 7.41 | .038 | 50.28 ± 4.57 | 48.30 ± 5.94 | .002 |
| LVEDD, mm | 48.73 ± 5.23 | 48.53 ± 5.44 | .500 | 47.39 ± 5.09 | 46.97 ± 5.00 | .125 |
| LVESD, mm | 30.75 ± 4.59 | 30.45 ± 4.71 | .172 | 29.05 ± 4.90 | 29.16 ± 4.87 | .652 |
| EF (M‐mode, %) | 65.44 ± 7.84 | 66.12 ± 7.02 | .151 | 68.84 ± 8.15 | 68.29 ± 7.70 | .143 |
| SV (VTI, mL) | 65.45 ± 18.68 | 64.08 ± 16.97 | .241 | 66.43 ± 14.33 | 63.51 ± 13.72 | .005 |
| RT‐3DE measurement data | ||||||
| LVEDV, mL | 98.73 ± 22.58 | 94.39 ± 18.82 | .015 | 92.13 ± 21.93 | 85.61 ± 22.28 | .011 |
| LVESV, mL | 42.96 ± 13.30 | 41.21 ± 11.55 | .035 | 39.53 ± 16.34 | 34.95 ± 11.25 | .033 |
| EF (3D, %) | 56.48 ± 6.65 | 55.95 ± 6.26 | .259 | 59.98 ± 7.26 | 58.88 ± 6.19 | .060 |
| SV (3D, mL) | 55.60 ± 13.35 | 53.13 ± 10.93 | .030 | 54.72 ± 12.38 | 51.42 ± 12.10 | .004 |
| MR degree | ||||||
| MR VCW (cm) | 0.26 ± 0.26 | 0.28 ± 0.26 | .338 | 0.16 ± 0.22 | 0.22 ± 0.29 | .128 |
| MR jet area/LAA (%) | 11.61 ± 12.00 | 12.41 ± 13.38 | .485 | 4.75 ± 7.02 | 8.26 ± 12.97 | .050 |
| TR degree | ||||||
| TR VCW, cm | 0.35 ± 0.33 | 0.34 ± 0.31 | .288 | 0.33 ± 0.28 | 0.37 ± 0.30 | .005 |
| TR jet area/RAA (%) | 13.54 ± 12.33 | 13.41 ± 12.20 | .893 | 18.20 ± 14.27 | 21.54 ± 16.22 | .005 |
Abbreviations: 2DE, two‐dimensional echocardiographic; 3D, three‐dimensional; EF, ejection fraction; LA, left atrium; LAA, left atrial area; LBBP, left bundle branch pacing; LVEDD, left ventricular end‐diastolic diameter; LVEDV, left ventricular end‐diastolic volume; LVESD, left ventricular end‐systolic diameter; LVESV, left ventricular end‐systolic volume; LVFT, left ventricular filling time; MR, mitral regurgitation; RT‐3DE, real‐time three‐dimensional echocardiographic; RAA, right atrial area; RVSP, right ventricular septum pacing; SV, stroke volume; TR, tricuspid regurgitation; VCW, vena contracta width; VTI, velocity time integral.