Overlay of a sponge soaked with ropivacaine and multisite infiltration analgesia result in faster recovery after laparoscopic hepatectomy

Table 4 Postoperative hospitalization and complications

Characteristic	Ropivacaine group	Control group	t/χ2	P-value
Hospitalization after operation (d)	7.28 ± 2.502	7.76 ± 2.990	-1.029	0.3055
Postoperative nausea and vomiting
Neither nausea nor vomiting	22	15	1.819	0.4027
Nausea without vomiting	39	41
Nausea with vomiting	8	11
Complication (+/-)
Hydrothorax	25/44	27/40	0.238	0.6256
Ascites	10/59	8/59	0.193	0.6606
Peritonitis	1/68	0/67	0.978	0.3226
Flatulence	32/37	39/28	1.907	0.1673
Venous thrombus	3/66	5/62	0.596	0.4402
Incision infection	2/67	1/66	0.312	0.5768