Table 3.
Characteristics of non-randomized trials
| First author | Year of publication | Country/state | Pressure | Procedure | Number of patients |
|---|---|---|---|---|---|
| Atila [42] | 2009 | Turkey | N/A | LC | 40 |
| Davides [43] | 1999 | UK | 7 versus 10.6 | LC | 50 versus 77 |
| Hawasli [44] | 2003 | USA | 10 versus 15 | LDN | 25 versus 25 |
| Kamine [45] | 2014 | USA | N/A | LA VERSUSP | 9 |
| Kovacs [46] | 2012 | Hungary | 8 versus 13 | LDN | 44 versus 26 |
| Matsuzaki [47] | 2011 | France | 8 versus 12 | LH | 32 versus 36 |
| Park [22] | 2012 | Korea | 10 versus 15 | LCol | 30 |
| Rist [48] | 2001 | Germany | 10 versus 15 | L | 10 |
| Schwarte [38] | 2004 | Germany | 8 versus 12 | DL | 16 |
DL diagnostic laparoscopy, L laparoscopy of the lower abdomen, LA VSP laparoscopy-assisted ventriculoperitoneal shunt placement, LC laparoscopic cholecystectomy, LCol laparoscopic colectomy, LDN laparoscopic donor nephrectomy, LH laparoscopic hysterectomy