Laparoscopic VS open hepatectomy for hepatolithiasis: An updated systematic review and meta-analysis

Table 2 Results of meta-analysis in laparoscopic hepatectomy vs open hepatectomy

Outcomes of interest	Study, n	LH, n	OH, n	WMD/OR (95%CI)	P	Study heterogeneity			P
						χ2	df	I2, %
Operative time, min	15	589	665	21.49 (-0.27, 43.24)	0.05	227.54	14	94	< 0.001
Estimated blood loss, mL	13	575	646	-61.56 (-108.2, -14.91)	0.01	124.6	12	90	< 0.001
Intraoperative transfusion	9	450	525	0.41 (0.22, 0.79)	0.008	13.36	8	40	0.10
Length of hospital stay, d	15	609	685	-3.32 (-4.32, -2.32)	< 0.001	75.37	14	81	< 0.001
Postoperative complications	16	624	705	0.52 (0.39, 0.70)	< 0.001	10.10	15	0	0.81
Time to oral intake, d	7	210	289	-0.98 (-1.48, -0.47)	< 0.001	188.28	6	97	< 0.001
Initial residual stone	12	517	604	0.79 (0.50, 1.25)	0.31	3.96	11	0	0.97
Final residual stone	5	136	146	0.34 (0.11, 1.08)	0,07	2.92	4	0	0.57
Stone recurrence	12	530	604	0.63 (0.34, 1.16)	0.14	4.08	11	0	0.97

df: Degrees of freedom; LH: Laparoscopic hepatectomy; OH: Open hepatectomy; WMD/OR: Weight mean difference/odds ratio.