Short-term outcomes after laparoscopic colorectal surgery in patients with previous abdominal surgery: A systematic review

Table 2 Intraoperative findings of 13 studies in patients submitted to laparoscopy with or without previous abdominal surgery

Ref.	Type of study	No. of patients			Conversion rate (%)			Inadvertent enterotomy (%)
		Total	PAOS	non PAOS	PAOS	non PAOS	P-value	PAOS	non PAOS	P-value
Hamel et al[19]	Comparative	85	36	49	17	12	0.754	N/A	N/A	N/A
Kwok et al[26]	Comparative	91	26	65	15.4	7.7	0.55	N/A	N/A	N/A
Law et al[22]	Comparative	295	84	211	17	11	0.181	N/A	N/A	N/A
Arteaga González et al[21]	Comparative	86	27	59	26.1	5.1	0.02	0	1.7	NS
Franko et al[23]	Comparative	820	347	473	19	11	< 0.001	1.4	0.2	0.04
Vignali et al[14]	Case-matched	182	91	91	16.5	8.8	0.18	N/A	N/A	N/A
Nozaki et al[17]	Comparative	121	21	100	0	0	N/A	N/A	N/A	N/A
Offodile et al[25]	Comparative	414	171	243	17	15	0.42	N/A	N/A	N/A
Barleben et al[16]	Observational; not comparative	55	55	0	14.5	N/A	N/A	N/A	N/A	N/A
Fukunaga et al[24]	Comparative	607	192	415	5.2	2.6	0.108	2.6	0	0.001
Maggiori et al[18]	Case-matched	367	167	200	22	13	0.017	N/A	N/A	N/A
Naguib et al[20]	Comparative	181	68	113	13.2	10.6	0.6	2.9	0	0.14
Yamamoto et al[13]	Comparative	1701	580	1121	12.4	10.2	0.16	0.9	0.1	0.037
Total		5005	1865	3140

NS: Not significant; N/A: Not available; PAOS: Previous abdominal surgery.