Propofol (mcg/kg/min)
80 100 120
Fentanyl (mcg/kg) 1 14 (5) 16 (6) 18 (6)
2 17 (6) 19 (7) 22 (7)
3 20 (7) 22 (8) 25 (9)
Data are presented as the mean (standard deviation) time (in minutes) from termination of the propofol and remifentanil infusions to 50% loss of analgesia for each dosing scheme. The remifentanil infusion was held constant at 0.2 mcg/kg/ min. A difference of 5 minutes was considered to be of clinical significance.
Table 7: Duration of analgesia following termination of the anesthetic.