Fig. 5From: Effects of intraoperative individualized PEEP on postoperative atelectasis in obese patients: study protocol for a prospective randomized controlled trialStandard protocol items: time schedule of enrollment, interventions, and assessments. PEEP, positive end-expiratory airway pressure; iPEEP, individual PEEP; RM, recruitment maneuver; EIT, electrical impedance tomography; PNP, pneumoperitoneum; PCT, serum procalcitonin; PPCs, postoperative pulmonary complications; POD, postoperative day; ICU, intensive care unitBack to article page