- Postoperative data.
| Variables | All patients (N=159) | DEX group (n=74) | Non-DEX group (n=85) | P-values |
|---|---|---|---|---|
| Fentanyl dose for PCA (μg) | 1199.4±200.2 | 1210.8±197.0 | 1189.4±203.6 | 0.499 |
| Fentanyl dose for PACU (μg) | 39.5±28.9 | 27.9±23.1 | 49.6±29.8 | <0.001 |
| Fentanyl dose after surgery (μg) | ||||
| POD 1 | 72.9±80.5 | 73.3±77.5 | 72.5±83.5 | >0.999 |
| POD 2 | 140.3±105.3 | 123.5±105.6 | 154.9±103.4 | 0.244 |
| POD 3 | 168.9±160.9 | 184.7±195.3 | 155.2±123.0 | >0.999 |
| Discontinuation day of PCA (POD) | 2.4±0.9 | 2.3±1.0 | 2.5±0.8 | 0.080 |
| Time to pass flatus (POD) | 2.9±1.0 | 3.0±1.0 | 2.8±1.0 | 0.314 |
| Length of hospital stay (POD) | 6.3±1.2 | 6.2±1.3 | 6.4±1.1 | 0.076 |
Values are presented as mean ± standard deviation (SD). DEX: dexmedetomidine, PCA: patient-controlled analgesia, PACU: post-anesthesia care unit, POD: postoperative day