Table 1 Baseline characteristics and intraoperative data of the patients
Variable | PRF group (n = 67) | Nerve block group (n = 67) | P value |
|---|---|---|---|
Age (years) | 58.24 ± 9.80 | 59.46 ± 11.69 | 0.203 |
Gender, male (%) | 33 (49.3) | 31(46.3) | 0.729 |
Disease duration (months) | 36 (24,45) | 36 (24.5,60) | 0.201 |
Laterality, right (%) | 38 (56.7) | 34 (50.7) | 0.488 |
BNI score | |||
 BNI IV | 39 (58.2) | 39 (58.2) | 1.000 |
 BNI V | 28 (41.8) | 28 (41.8) |  |
Dosage of Carbamazepine drugs (milligrams per day) Branch affected | 500 (300–600) | 500 (400–600) | 0.194 |
V1, n (%) | 1(1.5) | 2 (3) | 0.822 |
V2, n (%) | 8(11.9) | 7 (10.4) | Â |
V3, n (%) | 11(16.4) | 9 (13.4) | Â |
V1 + V2, n (%) | 18(26.9) | 13(19.4) |  |
V2 + V3, n (%) | 25(37.3) | 30 (44.8) |  |
V1 + V2 + V3, n (%) | 4(6) | 6(9) |  |
PRF output voltage (v) | 77 ± 11.9 |  |  |
2Â Hz stimulating voltage (v) | 0.1 (0.1,0.15) | 0.1 (0.1,0.15) | 0.758 |
50Â Hz stimulating voltage(v) | 0.1 (0.1,0.15) | 0.1 (0.1,0.15) | 0.481 |
Tissue resistance (Ω) | 230 (219,244) | 232 (219,249) | 0.529 |
Surgery duration (min) | 33 (32,36) | 35(32,36) | 0.342 |