| Fentanyl requirement and recovery time | GA | ICNB | PVB | Pairwise comparison(P) | ||
| ICNB vs. PVB | ICNB vs. GA | PVB vs. GA | ||||
| Fentanyl requirement during operation(μg/kg) | 3.0(3.0-6.0) | 2.5(1.0-5.0) | 2.3(0-4.5) | 0.38 | 0.02 | < 0.01 |
| Fentanyl requirement in PACU(μg/kg) | 0(0-2.0) | 0(0-2.5) | 0(0-3.0) | 0.56 | 0.53 | 0.10 |
| Time of the first VAS score btained(min) | 41.8±10.8 | 29.5±8.0 | 33.5±7.0 | 0.07 | < 0.01 | 0.02 |
| Duration of PACU stay(min) | 51.1±6.2 | 43.7±9.1 | 43.0±7.9 | 0.93 | < 0.01 | < 0.01 |