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Table 1 Main excluded studies

From: Systematic review and meta-analysis of complications and mortality of veno-venous extracorporeal membrane oxygenation for refractory acute respiratory distress syndrome

Study Year Patients Reason for exclusion
Lehle et al. [42] 2014 317 No complications reported
Cheng et al. [43] 2013 216 Unable to identify data associated with veno-venous ECMO
Schmid et al. [44] 2012 176 Risk of patient overlap (duplicate)
Hemmila et al. [28] 2004 168 >10% veno-arterial ECMO
Bartlett et al. [45] 2000 146 >10% veno-arterial ECMO
Camboni et al. [26] 2011 127 Risk of patient overlap (duplicate)
Lindskov et al. [46] 2013 124 >10% veno-arterial ECMO
Pham et al. [35] 2013 123 >10% veno-arterial ECMO
Pranikoff et al. [47] 1999 94 Risk of bias
Bein et al. [48] 2006 90 Arterio-venous CO2 removal
Nehra et al. [49] 2009 81 Reports patients <18 years
Rubino et al. [50] 2014 72 Risk of bias
Liebold et al. [51] 2002 70 Reports patients <18 years
Chiu et al. [52] 2015 65 No complications reported
Pappalardo et al. [53] 2013 60 ELSO database
Ma et al. [54] 2012 56 Risk of bias
Chimot et al. [55] 2013 52 Risk of bias
Pranikoff et al. [56] 1994 51 >10% veno-arterial ECMO
Zimmermann et al. [57] 2009 51 Arterio-venous CO2 removal
Peek et al. [58] 1997 50 Reports patients <18 years