Epidural anesthesia and postoperative analgesia with ropivacaine and fentanyl in off-pump coronary artery bypass grafting: a randomized, controlled study

Table 1 Main characteristics of patients undergoing OPCAB

Characteristic	Groups
	Control (n = 30)	EI (n = 30)	PCEA (n = 30)
Age, yrs	58.6 ± 9.1	54.5 ± 8.2	53.6 ± 7.0
Gender, males/females, %	73/27	90/10	90/10
Preoperative ejection fraction	0.58 ± 0.10	0.58 ± 0.08	0.59 ± 0.09
Duration of surgery, min	174 ± 38	149 ± 36	155 ± 40
Duration of mechanical ventilation, min	358 (266-455)	300 (180-385)	245 (199-345)*
Postoperative ICU stay, h	59 ± 29	62 ± 28	59 ± 25
Duration of postoperative hospital stay, days	16.0 (14.8-20.3)	15.0 (14.0-18.5)	15.0 (14.0-18.3)

Data are presented as mean ± SD or median (25^th-75^th percentiles).
* P < 0.05 compared with the control group.
Control, control group; EI, epidural infusion group; PCEA, patient controlled epidural analgesia group.

ISSN: 1471-2253