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Moroni et al. Mini-invasive Surg 2019;3:36 I http://dx.doi.org/10.20517/2574-1225.2019.34 Page 3 of 12

1 (2) 4 (2.0) 10 (10)
4 0 0 0 0

13 (26) 39 (38.2) 7 (14) 15 (71) 52 (25.5) 38 (37.6) 4 (11.4)
3
ASA

31 (62) 55 (53.9) 37 (74) 6 (39) 120 (58.8) 40 (39.6) 16 (45.7)
2

5 (10) 8 (7.8) 6 (12) 28 (13.7) 13 (12.8) 15 (42.9)
1 0

Mean BMI 24 (49) 26.6 25.6 28.4 30 26 25.1 24.4

Median age (range) *Mean age ± SD 73.3 60.3 68.8 69 71 70.3 65 70.1 66.4 71.2 62.8 75

Number patients 16 50 31 102 53 20 89 50 21 588 206 113 101 35 31 This approach has been increasingly used [Figure 2, blue points]. The trocars are positioned on a horizontal line 3-4 cm above the pubic symphysis, separated by 6.5-7.5 cm [23,32,38,39] . The unconventional viewpoint is a potential barrier against its widespread use. This placement allows the extraction of the specimen The approach is technically challenging as surgic

Type of paper Prosp Retrosp Retrosp Retrosp Retrosp Prosp Retrosp Retrosp Retrosp Retrosp Retrosp Retrosp Prosp Prosp Retrosp

Period of recruitment 2003-2004 2001-2009 2010-2013 2005-2014 2016 2009-2015 2010-2015 2003-2016 2010-2016 2001-2015 2015-2016 2005-2013 2009-2011 2016-2018

Journal Surg Laparosc Endosc Percutan Tech Dis Colon Rectum Surg Endosc Surg Endosc Updates Surg EJSO J Robot Surg Updates Surg J Robot Surg Surg Endosc J Laparoendosc Adv Surg Tech A J Robot Surg Ann Surg Oncol Surg Endosc BMC Surg port access and increased incisional hernia rates [41-43] . Medial-to-lateral vs. lateral-to-medial approaches

Table 1. Descriptive table Year Author 2006 Ballantyne et al. [19] 2004 D’Annibale et al [20] . 2015 Juo et al. [21] 2015 Trastulli et al. [17] 2016 Formisano et al. [22] 2017 Petz et al. [23] 2017 Lujan et al. [24] 2019 Mégevand et al [25] . 2018 Blumberg [26] 2018 Cleary et al. [27] 2018 Scotton et al. [28] 2018 Johnson et al [29] 2018 Spinoglio et al [30] . 2019 Park et al. [31] 2019 Schulte et al. [32] Prosp: prospective; Retrosp: r