Ep86 - The PREOXI Trial

The EMS Lighthouse Project

What’s the best way to pre-oxygenate our patients prior to intubation? The evidence for this question has been mixed for some time. Dr Jarvis discusses the PREOXI Trial, which directly compares preoxygenation with non-invasive ventilation compared to a face mask to see which provides the best protection against peri-intubation hypoxia. This is an important trial that sheds light on a key component of our bundle of care to make intubation safer.

Citations:

1. Gibbs KW, Semler MW, Driver BE, Seitz KP, Stempek SB, Taylor C, Resnick-Ault D, White HD, Gandotra S, Doerschug KC, et al.: Noninvasive Ventilation for Preoxygenation during Emergency Intubation. N Engl J Med. (2024)
2. Jarvis JL, Gonzales J, Johns D, Sager L: Implementation of a Clinical Bundle to Reduce Out-of-Hospital Peri-intubation Hypoxia. Annals of Emergency Medicine. 2018;72:272–9.
3. Groombridge C, et al: A prospective, randomised trial of pre-oxygenation strategies available in the pre-hospital environment. Anaesthesia. 2017;72:580–4.
4. Groombridge C, et al: Assessment of Common Preoxygenation Strategies Outside of the Operating Room Environment. Acad Emerg Med. 2016;March;23(3):342–6.
5. Baillard C, et al: Noninvasive ventilation improves preoxygenation before intubation of hypoxic patients. Am J Respir Crit Care Med. 2006;July 15;174(2):171–7.
6. Ramkumar V, et al: Preoxygenation with 20-degree head-up tilt provides longer duration of non-hypoxic apnea than conventional preoxygenation in non-obese healthy adults. J Anesth. 2011;25:189–94.
7. Pourmand A, et al: Pre-oxygenation: Implications in emergency airway management. American Journal of Emergency Medicine. doi: 10.1016/j.ajem.2017.06.006
8. Solis A, Baillard C: Effectiveness of preoxygenation using the head-up position and noninvasive ventilation to reduce hypoxaemia during intubation. Ann Fr Anesth Reanim. 2008;June;27(6):490–4.
9. April MD, Arana A, Reynolds JC, Carlson JN, Davis WT, Schauer SG, Oliver JJ, Summers SM, Long B, Walls RM, et al.: Peri-intubation cardiac arrest in the Emergency Department: A National Emergency Airway Registry (NEAR) study. Resuscitation. 2021;May;162:403–11.
10. Trent SA, Driver BE, Prekker ME, Barnes CR, Brewer JM, Doerschug KC, Gaillard JP, Gibbs KW, Ghamande S, Hughes CG, et al.: Defining Successful Intubation on the First Attempt
11. Using Both Laryngoscope and Endotracheal Tube Insertions: A Secondary Analysis of Clinical Trial Data. Annals of Emergency Medicine. 2023;82(4):S0196064423002135.
12. Pavlov I, Medrano S, Weingart S: Apneic oxygenation reduces the incidence of hypoxemia during emergency intubation: A systematic review and meta-analysis. AJEM. 2017;35(8):1184–9.