Assessment of Ventilation Distribution during Laparoscopic Bariatric Surgery: An Electrical Impedance Tomography Study

Figure 2

IR ratio (regional ventilation distribution) in groups PEEP 0 and PEEP 10 at T1–T5. PEEP 0: T1 versus T2, T2 versus T3, T2 versus T4, T2 versus T5, T3 versus T4, and T4 versus T5; all p < 0,002. PEEP 10: T1 versus T2, T2 versus T3, T2 versus T4, T3 versus T4, and T4 versus T5, p < 0,001 and T2 versus T5; p > 0,05 (NS). PEEP 0 versus PEEP 10: T1–T5; all p > 0,05 (NS).