A Comparison of Oxycodone and Alfentanil in Intravenous Patient-Controlled Analgesia with a Time-Scheduled Decremental Infusion after Laparoscopic Cholecystectomy
Table 2
Incidence rate of postoperative nausea and vomiting.
Time after operation
Alfentanil group ()
Oxycodone group ()
value (N/V)
Nausea
Vomiting
Nausea
Vomiting
<8 h
14 (34.1%)
2 (4.9%)
8 (19.5%)
0 (0%)
0.135/0.494
<1 h
8 (19.5%)
1 (2.4%)
7 (17.1%)
0 (0%)
0.775/1.000
1~4 h
5 (12.2%)
1 (2.4%)
2 (4.9%)
0 (0%)
0.432/1.000
4~8 h
5 (12.2%)
0 (0%)
3 (7.3%)
0 (0%)
0.712/—
8~24 h
2 (4.9%)
1 (2.4%)
5 (12.2%)
0 (0%)
0.432/1.000
8~16 h
2 (4.9%)
1 (2.4%)
3 (7.3%)
0 (0%)
1.000/1.000
16~24 h
0 (0%)
0 (0%)
3 (7.3%)
0 (0%)
0.241/—
24~48 h
0 (0%)
0 (0%)
1 (2.4%)
0 (0%)
0.494/—
N: nausea; V: vomiting. Values are expressed as number of patients (percentage). The data were analyzed using Fisher’s exact test and chi-square test. There were no significant differences between two groups ( value < 0.05).
