Fig. 3From: The use of extracorporeal CO2 removal in acute respiratory failureSchematic representation of different ECCO2R systems. ECCO2R: extracorporeal carbon dioxide removal. a Pumpless arteriovenous system. b Venovenous system. Pump and membrane are in series. c Venovenous system. Pump is integrated into the membrane. d Venovenous system. The membrane is integrated into an extrarenal purification system that has its own pumpBack to article page