Journal
THORAX
Volume 74, Issue 12, Pages 1179-1181Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/thoraxjnl-2019-213591
Keywords
acute respiratory distress syndrome; mechanical ventilation; extracorporeal carbon dioxide removal; ventilator-induced lung injury
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Funding
- European Society of Intensive Care Medicine (ESICM)
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Retrospective analysis of the SUPERNOVA trial exploring the hypothesis that efficacy and safety of extracorporeal carbon dioxide removal (ECCO2R) to facilitate reduction of tidal volume (V-T) to 4mL/kg in patients with acute respiratory distress syndrome (ARDS) may differ between systems with lower (area of membrane length 0.59m(2); blood flow 300-500mL/min) and higher (membrane area 1.30m(2); blood flow between 800 and 1000mL/min) CO2 extraction capacity. Ninety-five patients with moderate ARDS were included (33 patients treated with lower and 62 patients treated with higher CO2 extraction devices). We found that (1) V-T of 4mL/kg was reached by 55% and 64% of patients with the lower extraction versus 90% and 92% of patients with higher extraction devices at 8 and 24hours from baseline, respectively (p<0.001), and (2) percentage of patients experiencing episodes of ECCO2R-related haemolysis and bleeding was higher with lower than with higher extraction devices (21% vs 6%, p=0.045%and 27% vs 6%, p=0.010, respectively). Although V (T) of 4mL/kg could have been obtained with all devices, this was achieved frequently and with a lower rate of adverse events by devices with higher CO2 extraction capacity.
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