Table 4.
Group L: 0.1 µg/kg/min remifentanil, Group H: 0.3 µg/kg/min, Group HK: 0.3 µg/kg/min remifentanil plus 0.25 mg/kg ketamine. *P < 0.05 versus group L. PCA: patient-controlled analgesia.
Group L: 0.1 µg/kg/min remifentanil, Group H: 0.3 µg/kg/min, Group HK: 0.3 µg/kg/min remifentanil plus 0.25 mg/kg ketamine. *P < 0.05 versus group L. PCA: patient-controlled analgesia.