Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Jan 2016
Randomized Controlled TrialPreserved oxygenation in obese patients receiving protective ventilation during laparoscopic surgery: a randomized controlled study.
Venous admixture from atelectasis and airway closure impedes oxygenation during general anaesthesia. We tested the hypothesis that continuous positive airway pressure (CPAP) during pre-oxygenation and reduced fraction of inspiratory oxygen (FIO2 ) during emergence from anaesthesia can improve oxygenation in patients with obesity undergoing laparoscopic surgery. ⋯ A CPAP of 10 cmH2 O during pre-oxygenation and induction, followed by PEEP after intubation, seemed to preserve oxygenation during anaesthesia. Post-operative oxygenation depended on the FIO2 used during emergence.