Fig. 1
From: Lung behavior during a staircase high-frequency oscillatory ventilation recruitment maneuver
Graphic representation of the inflation phase of the lung volume optimization maneuvre. During the incremental pressure titration lung recruitment is monitored using the transcutaneous oxygen saturation (SpO2). First, pressure is increased stepwise by 2 cmH2O until overdistension occurs. Then, pressure is reduced stepwise by 2 cmH2O. CDP continuous distending pressure, R–L shunt right-to-left shunting