The Efficacy of Programmed Intermittent Epidural Bolus for Postoperative Analgesia after Open Gynecological Surgery: A Randomized Double-Blinded Study

Table 3

Postoperative complications in the programmed intermittent epidural bolus (PIEB) and continuous epidural infusion (CEI) groups (intention-to-treat analysis).

Variable	PIEB group	CEI group	P value
	()	()
3 hours
Postoperative nausea and/or vomiting	14	19	0.236
Sensory and/or motor block	1	1	0.980
Hypotension	0	0	1.000
24 hours
Postoperative nausea and/or vomiting	8	13	0.200
Sensory and/or motor block	0	0	1.000
Hypotension	0	0	1.000
48 hours
Postoperative nausea and/or vomiting	3	9	0.050
Sensory and/or motor block	0	0	1.000
Hypotension	0	0	1.000

All data are presented as total numbers; CEI: continuous epidural infusion; PIEB: programmed intermittent epidural bolus.