Lung ultrasound score evaluation of the effect of pressure-controlled ventilation volume-guaranteed on patients undergoing laparoscopic-assisted radical gastrectomy

Figure 2 Comparison of (arterial partial pressure of oxygen) PaO₂ and (partial pressure of carbon dioxide) PaCO₂. A and B: Changes in (A) PaO₂ and (B) PaCO₂ at various time points. ^aP < 0.05 and ^bP < 0.01, compared with T0; ^cP < 0.05 vs control group.