Table 3.
Implantation and follow-up results.
| Standard group (n = 10) | EAM guided group (n = 10) | P -value | |
|---|---|---|---|
| Successful HBP | 9 (90.0%) | 9 (90.0%) | 1.00 |
| Dual chamber pacemaker | 10 (100.00%) | 10 (100.00%) | N/A |
| Procedural details* | |||
| PT (min) | 85.40 ± 22.34 | 86.50 ± 15.05 | 0.90 |
| Total FT (min) | 12.36 ± 5.46 | 1.45 ± 0.58 | <0.01 |
| HL-FT (min) | 9.27 ± 5.44 | 0.84 ± 0.56 | <0.01 |
| Total FD (mGy) | 25.38 ± 11.15 | 3.13 ± 1.24 | <0.01 |
| HL-FD (mGy) | 19.06 ± 11.03 | 1.85 ± 1.17 | <0.01 |
| Paced QRSd (ms) | 123.33 ± 20.10 | 120.89 ± 17.18 | 0.79 |
| Pacing parameters | |||
| Capture threshold (V/1 ms) | 1.19 ± 0.35 | 1.10 ± 0.42 | 0.63 |
| R-wave amplitude (mV) | 5.27 ± 2.30 | 5.23 ± 1.99 | 0.97 |
| Impedance (Ω) | 576.67 ± 98.08 | 556.11 ± 98.67 | 0.66 |
| Parameters at follow-up | |||
| Capture threshold (V/1 ms) | 1.29 ± 0.32 | 1.10 ± 0.29 | 0.21 |
| R-wave amplitude (mV) | 5.51 ± 2.84 | 5.53 ± 2.03 | 0.93 |
| Impedance (Ω) | 489.44 ± 67.77 | 479.22 ± 72.91 | 0.76 |
| Echocardiography at follow-up | |||
| LVEF (%) | 62.00 ± 4.85 | 60.22 ± 4.41 | 0.30 |
| LVEDD (mm) | 51.11 ± 6.35 | 49.67 ± 3.12 | 0.55 |
EAM, electroanatomical mapping; FD, fluoroscopic dose; FT, fluoroscopic time; HBP, His bundle pacing; HL-FD, His lead fluoroscopic dose; HL-FT, His lead fluoroscopic time; PT, procedural time; QRSd, QRS duration; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction.
*
Including patients who failed to achieve HBP.