Why the study?
Does preoxygenation with four deep breaths of O2 improve arterial oxygenation during laryngoscopy and intubation compared to breathing air in patients receiving mask ventilation with 100% O2?
Population
37 patients undergoing anesthetic induction, laryngoscopy, and tracheal intubation
Comparison
Four maximally deep breaths of O2 within 30… vs Breathing air immediately before anesthetic…
Design
Cohort
Follow-up
During laryngoscopy and intubation
Authors
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Preoxygenation does not raise CaO2 during laryngoscopy with mask ventilation; leaves open benefit without supplemental O2.
Does preoxygenation with four deep breaths of O2 improve arterial oxygenation during laryngoscopy and intubation compared to breathing air in patients receiving mask ventilation with 100% O2?
Preoxygenation with four deep breaths of O2 increases PaO2 but provides insignificant improvement in CaO2 during laryngoscopy when mask ventilation with O2 is used.
Gold et al. (1981) studied this question.
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