Evaluation of a New Extracorporeal CO2 Removal Device in an Experimental Setting

Di Nardo, Matteo and Annoni, Filippo and Su, Fuhong and Belliato, Mirko and Lorusso, Roberto and Broman, Lars Mikael and Malfertheiner, Maximilian and Creteur, Jacques and Taccone, Fabio Silvio (2021) Evaluation of a New Extracorporeal CO2 Removal Device in an Experimental Setting. MEMBRANES, 11 (1): 8. ISSN , 2077-0375

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Abstract

Background: Ultra-protective lung ventilation in acute respiratory distress syndrome or early weaning and/or avoidance of mechanical ventilation in decompensated chronic obstructive pulmonary disease may be facilitated by the use of extracorporeal CO2 removal (ECCO2R). We tested the CO2 removal performance of a new ECCO2R (CO2RESET) device in an experimental animal model. Methods: Three healthy pigs were mechanically ventilated and connected to the CO2RESET device (surface area = 1.8 m(2), EUROSETS S.r.l., Medolla, Italy). Respiratory settings were adjusted to induce respiratory acidosis with the adjunct of an external source of pure CO2 (target pre membrane lung venous PCO2 (PpreCO2): 80-120 mmHg). The amount of CO2 removed (VCO2, mL/min) by the membrane lung was assessed directly by the ECCO2R device. Results: Before the initiation of ECCO2R, the median PpreCO2 was 102.50 (95.30-118.20) mmHg. Using fixed incremental steps of the sweep gas flow and maintaining a fixed blood flow of 600 mL/min, VCO2 progressively increased from 0 mL/min (gas flow of 0 mL/min) to 170.00 (160.00-200.00) mL/min at a gas flow of 10 L/min. In particular, a high increase of VCO2 was observed increasing the gas flow from 0 to 2 L/min, then, VCO2 tended to progressively achieve a steady-state for higher gas flows. No animal or pump complications were observed. Conclusions: Medium-flow ECCO2R devices with a blood flow of 600 mL/min and a high surface membrane lung (1.8 m(2)) provided a high VCO2 using moderate sweep gas flows (i.e., >2 L/min) in an experimental swine models with healthy lungs.

Item Type: Article
Uncontrolled Keywords: ; extracorporeal CO2 removal; lung protective ventilation; mechanical ventilation; experimental model
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Innere Medizin II
Depositing User: Dr. Gernot Deinzer
Date Deposited: 20 Sep 2022 13:05
Last Modified: 20 Sep 2022 13:05
URI: https://pred.uni-regensburg.de/id/eprint/47679

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