SummaryRecent studies have shown that nasal oxygen delivery can prolong the time to desaturation during apnoea in the non-pregnant population. We investigated the benefits of apnoeic oxygenation during rapid sequence induction in the obstetric population using computational modelling. We used the Nottingham Physiology Simulator, and preoxygenated seven models of pregnancy for 3 min using F i O 2 1.0, before inducing apnoea. We found that increasing F i O 2 at the open glottis increased the time to desaturatio…
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