Table 1. Outcome Measurements Prior and Following Meperidine Administration in Different Anesthesia Methods.
| General Anesthesia, (n = 23), Mean ± SD | Spinal Anesthesia, (n = 18), Mean ± SD | Epidural Anesthesia, (n = 9), Mean ± SD | Total, (n = 50), Mean ± SD | |
|---|---|---|---|---|
| VAS prior meperidine | 9.1 ± 1.3 | 8.2 ± 2.1 | 8.0 ± 1.8 | 8.5 ± 1.4 |
| VAS following meperidine | 2.6 ± 2.3 | 2.1 ± 1.7 | 1.8 ± 1.4 | 2.3 ± 2.0 |
| ER difference | 0.45 ± 0.55 | 0.56 ± 0.52 | 0.14 ± 0.16 | 0.43 ± 0.51 |
| ER adjusted a | 0.69 ± 0.81 | 0.83 ± 0.71 | 0.21 ± 0.23 | 0.65 ± 0.720 |
| Sedation, Median (quartile) | 2.1 ± 2.5 | 1.5 ± 1.2 | 1.5 ± 1.2 | 1.5 ± 1.2 |
Abbreviation: ER, Electrical resistance
aElectrical resistance adjusted to weight of patients