Fig. 3From: The level of partial pressure of carbon dioxide affects respiratory effort in COVID-19 patients undergoing pressure support ventilation with extracorporeal membrane oxygenationCorrelation between the difference in PaCO2 and respiratory effort parameters. ΔPOCC, airway pressure swing during occlusion; PMI, pressure muscle index; ΔPaCO2, the value of PaCO2 in the High PaCO2 phase minus the base PaCO2 value; ΔΔPOCC, the value of ΔPOCC in the High PaCO2 phase minus the base ΔPOCC value; ΔPMI, the value of PMI in the High PaCO2 phase minus the base PMI valueBack to article page