Fig. 2From: Effects of ultrasound-guided alveolar recruitment manoeuvres compared with sustained inflation or no recruitment manoeuvres on atelectasis in laparoscopic gynaecological surgery as assessed by ultrasonography: a randomized clinical trialSchematic diagram of the study protocol. LUS: lung ultrasound score; RMs: recruitment manoeuvres; PACU: postanaesthesia care unit; UD: ultrasound-guided; SI: sustained inflation; T0: immediately before induction; T1:immediately after induction; T2: immediately after the end of surgery; T3: 30Â min after tracheal extubationBack to article page