TABLE 2.
Comparison of synchronization status and left ventricular function between the LBBP and RVP groups before and after pacemaker implantation
| Baseline | P value | After pacemaker implantation | P value | |||
|---|---|---|---|---|---|---|
| Groups | LBBP, n = 16 | RVP, n = 16 | LBBP n = 16 | RVP n = 16 | ||
| EDD | 5.07 ± 0.25 | 5.20 ± 0.25 | .113 | 5.10 ± 0.25 | 5.24 ± 0.22 | .097 |
| LVEF (%) | 68.69 ± 3.14 | 66.13 ± 4.50 | .097 | 66.94 ± 1.69 | 65.19 ± 3.43 | .136 |
| Average of peak longitudinal 2D‐stain (−%) | 21.36 ± 2.05 | 20.10 ± 4.26 | .720 | 20.59 ± 2.44 | 18.90 ± 5.29 | .474 |
| SPWMD (ms) | 36.00 ± 21.48 | 32.50 ± 18.58 | .213 | 43.31 ± 23.27 | 93.56 ± 36.77 | <.01 |
| left and right ventricular pre‐ejection period difference (ms) | 11.38 ± 7.79 | 12.88 ± 6.99 | .484 | 10.23 ± 3.07 | 39.94 ± 14.81 | <.01 |
| 18‐segment maximum time difference to peak 2‐D strain (ms) | 51.69 ± 28.97 | 50.13 ± 25.66 | .650 | 66.62 ± 37.24 | 148.62 ± 43.67 | <.01 |
| standard deviation of 18‐segment systolic times to peak 2‐D strain (ms) | 17.57 ± 10.04 | 13.30 ± 8.14 | .187 | 21.80 ± 12.13 | 52.70 ± 17.72 | <.01 |
| Anteroseptal segment vs posterior segment (ms) | 23.81 ± 10.44 | 19.81 ± 9.98 | .255 | 22.94 ± 29.20 | 96.63 ± 41.24 | <.01 |
| Anterior segment vs inferior segment (ms) | 30.31 ± 8.89 | 25.56 ± 11.56 | .806 | 38.88 ± 37.03 | 115.63 ± 59.43 | <.01 |
| Septal segment vs lateral segment (ms) | 40.44 ± 10.45 | 36.5 ± 18.78 | .734 | 47.38 ± 29.89 | 127.31 ± 53.18 | <.01 |
Abbreviations: EDD, end diastolic diameter; LBBP, left bundle branch area pacing; LVEF, left ventricular ejection fraction; RVP, right ventricular pacing; SPWMD, septal to posterior wall motion delay.