• Emerg Med J · Nov 2024

    Prehospital endotracheal intubation for traumatic out-of-hospital cardiac arrest and improved neurological outcomes.

    • Ryo Yamamoto, Masaru Suzuki, Ryo Takemura, and Junichi Sasaki.
    • Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan ryo.yamamoto@gmail.com.
    • Emerg Med J. 2024 Nov 1.

    BackgroundPatients with traumatic out-of-hospital cardiac arrest (t-OHCA) require on-scene airway management to maintain tissue oxygenation. However, the benefits of prehospital endotracheal intubation remain unclear, particularly regarding neurological outcomes. Therefore, this study aimed to evaluate the association between prehospital intubation and favourable neurological outcomes in patients with t-OHCA.MethodsThis retrospective cohort study used a Japanese nationwide trauma registry from 2019 to 2021. It included adult patients diagnosed with traumatic cardiac arrest on emergency medical service arrival. Glasgow Outcome Scale (GOS) scores, survival at discharge and presence of signs of life on hospital arrival were compared between patients with prehospital intubation and those with supraglottic airway or manual airway management. Inverse probability weighting with propensity scores was used to adjust for patient, injury, treatment and institutional characteristics, and the effects of intubation on outcomes averaged over baseline covariates were shown as marginal ORs.ResultsA total of 1524 patients were included in this study, with 370 undergoing intubation before hospital arrival. Prehospital intubation was associated with favourable neurological outcomes at discharge (GOS≥4 in 5/362 (1.4%) vs 10/1129 (0.9%); marginal OR 1.99; 95% CI 1.12 to 3.53; p=0.021) and higher survival to discharge (25/370 (6.8%) vs 63/1154 (5.5%); marginal OR 1.43; 95% CI 1.08 to 1.90; p=0.012). However, no association with signs of life on hospital arrival was observed (65/341 (19.1%) vs 147/1026 (14.3%); marginal OR 1.09; 95% CI 0.89 to 1.34). Favourable outcomes were observed only in patients who underwent intubation with a severe chest injury (Abbreviated Injury Score ≥3) and with transportation time to hospital >15 min (OR 14.44 and 2.00; 95% CI 1.89 to 110.02 and 1.09 to 3.65, respectively).ConclusionsPrehospital intubation was associated with favourable neurological outcomes among adult patients with t-OHCA who had severe chest injury or transportation time >15 min.© Author(s) (or their employer(s)) 2024. No commercial re-use. See rights and permissions. Published by BMJ.

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