Guidelines for laparoscopic treatment of ventral and incisional abdominal wall hernias (International Endohernia Society [IEHS])—Part 2

Table 1 Level 1a studies comparing laparoscopic and open repairs of incisional ventral hernia

Author	No of patients lap/open	Follow- up (months	Hospital stay (days) lap/open	Return to activity/work (days) lap/open	Cost lap/open)	QOL lap/open)	Acute pain lap/open	Chronic pain lap/open	Recurrence lap/open
Sains et al. [152] 5 RCTs	366 183/183	2–27	Shorter hospital stay in lap SMD 1.82 95 % CI 3.21 to −0.44 p = 0.01	NR	NR	NR	No difference 95 % CI −0.41 to 0.33 p = 0.84 (2 trials)	NR	RR: 1.0 95 % CI 0.31−3.2 p = 1
Forbes et al. [16] 8 RCTs	517 269/253	23	1.1–5.7/1.33–9.06 6 RCTs Shorter hospital stay in lap	13/25 p = < 0.005 (1 study)	NR	NR	NR	NR	3.4 %/3.6 % RR 1.02 95 % CI 0.41−2.54 p = 0.56
Sauerland et al. [2] 9 RCTs	880 446/434	2–27	1.1–5.7/1.33–9.06 p = 0.56 6 RCTs Shorter hospital stay in lap	No difference 9% CI −2.1 to 0.7 p = 0.33 (2 studies)	95 % CI 1.84–3.14 p < 0.00001 (1 study)	No difference p = 0.11 (1 study)	95 % CI:P −0.45 to 0.62 p = 0.75 (4 studies)	95 % CI −0.24 to 1.11 p = 0.2 (1 study)	RR: 1.22 95 % CI 0.62–2.38 p = 0.56

Lap laparoscopic group, QOL quality of life, RCT randomized controlled trial, SMD, CI confidence interval, RR, NR not recorded