Perioperative use of ketamine infusion versus dexmedetomidine infusion for analgesia in obese patients undergoing bariatric surgery: a double-blinded three-armed randomized controlled trial

Table 4 Length of surgery, time to extubation, and intraoperative total fentanyl doses in the study groups

		Mean	SD	P-value
Length of surgery (min)	Ketamine	87	15	0.128
	Dexmedetomidine	81	15
	Control	88	17
Time to extubation (min)	Ketamine	4	1	0.005
	Dexmedetomidine	3*	1
	Control	4	1
Intraoperative total fentanyl dose (µg)	Ketamine	160	42	< 0.001
	Dexmedetomidine	135*	37
	Control	187	56

SD, standard deviation
There were no statistically significant differences in the length of surgery between the three groups
* Compared with the other treatments, dexmedetomidine significantly reduced the time to extubation and intraoperative fentanyl requirement

ISSN: 1471-2253