Outcomes of laparoscopic bile duct exploration for choledocholithiasis with small common bile duct

Table 2 Safety profile and procedure-related short-term outcomes of the small common bile duct and large common bile duct groups

		Before matching, n = 257			After matching, n = 184
		Large CBD, n = 146	Small CBD, n = 111	P value	Large CBD, n = 92	Small CBD, n = 92	P value
Operating time in min		115.7 ± 32.0	107.2 ± 28.3	0.379	114.7 ± 33.7	106.4 ± 27.7	0.073
Intraoperative blood loss in mL		20 (5-200)	20 (5-200)	0.028	20 (5-200)	20 (5-200)	0.168
Convert to laparotomy	No	145	111	1.000	92	92
	Yes	1	0		0	0
Successful stone clearance	No	2	4	0.449	2	2	1.000
	Yes	144	107		90	90
Bile leakage	No	137	105	0.797	85	88	0.351
	Yes	9	6		7	4
Bleeding	No	145	111	1.000	91	92	1.000
	Yes	1	0		1	0
Abdominal infection	No	138	106	0.724	85	88	0.351
	Yes	8	5		7	4
Pneumonia	No	138	110	0.102	86	91	0.123
	Yes	8	1		6	1
Incision infection	No	140	110	0.239	88	92	0.129
	Yes	6	1		4	0
Postoperative hospital stay in d		7.7 ± 2.7	7.4 ± 3.6	0.406	7.7 ± 2.7	7.3 ± 3.7	0.392

CBD: Common bile duct.