References | Design | Number of patients | Level of evidence | Multichannel port for LESS | Quality score (failing items) | NOS score (max: 9) | |
---|---|---|---|---|---|---|---|
LESS-V | CTL-V | ||||||
Bansal et al. (2014) | Retrospective case control study | 11 | 32 | 3b | TriPort | – | 5 |
Friedersdorff et al. (2013) | Retrospective case control study | 20 | 79 | 3b | X-cone | – | 6 |
Lee et al. (2012) | RCT | 39 | 43 | 2b | Home-made | 6 (BC) | – |
Marte et al. (2014) | Retrospective case control study | 44 | 25 | 4 | SILS | – | 5 |
Wang et al. (2014) | RCT | 44 | 43 | 2b | Home-made | 6 (BC) | – |
Youssef and Abdalla (2015) | RCT | 41 | 39 | 2b | SILS | 6 (BC) | – |