Fig. 4From: Effects of intraoperative individualized PEEP on postoperative atelectasis in obese patients: study protocol for a prospective randomized controlled trialIndividualized PEEP titrated by optimal Cstat. Cstat, static lung compliance; PEEP, positive end-expiratory pressure; iPEEP, individualized positive end-expiratory pressure; RM, the ventilator-driven alveolar recruitment maneuver; PEEP5, PEEP is 5Â cmH2OBack to article page