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. 2023 May 29;23(1):57.
doi: 10.1186/s12873-023-00833-7.

Ketamine versus etomidate for rapid sequence intubation in patients with trauma: a retrospective study in a level 1 trauma center in Korea

Jinjoo Kim  1 , Kyoungwon Jung  1 , Jonghwan Moon  1 , Junsik Kwon  1 , Byung Hee Kang  1 , Jayoung Yoo  2 , Seoyoung Song  2 , Eunsook Bang  2 , Sora Kim  2 , Yo Huh  3
Affiliations

Ketamine versus etomidate for rapid sequence intubation in patients with trauma: a retrospective study in a level 1 trauma center in Korea

Jinjoo Kim et al. BMC Emerg Med. .

Abstract

Background: Ketamine and etomidate are commonly used as sedatives in rapid sequence intubation (RSI). However, there is no consensus on which agent should be favored when treating patients with trauma. This study aimed to compare the effects of ketamine and etomidate on first-pass success and outcomes of patients with trauma after RSI-facilitated emergency intubation.

Methods: We retrospectively reviewed 944 patients who underwent endotracheal intubation in a trauma bay at a Korean level 1 trauma center between January 2019 and December 2021. Outcomes were compared between the ketamine and etomidate groups after propensity score matching to balance the overall distribution between the two groups.

Results: In total, 620 patients were included in the analysis, of which 118 (19.9%) were administered ketamine and the remaining 502 (80.1%) were treated with etomidate. Patients in the ketamine group showed a significantly faster initial heart rate (105.0 ± 25.7 vs. 97.7 ± 23.6, p = 0.003), were more hypotensive (114.2 ± 32.8 mmHg vs. 139.3 ± 34.4 mmHg, p < 0.001), and had higher Glasgow Coma Scale (9.1 ± 4.0 vs. 8.2 ± 4.0, p = 0.031) and Injury Severity Score (32.5 ± 16.3 vs. 27.0 ± 13.3, p < 0.001) than those in the etomidate group. There were no significant differences in the first-pass success rate (90.7% vs. 90.1%, p > 0.999), final mortality (16.1% vs. 20.6, p = 0.348), length of stay in the intensive care unit (days) (8 [4, 15] (Interquartile range)), vs. 10 [4, 21], p = 0.998), ventilator days (4 [2, 10] vs. 5 [2, 13], p = 0.735), and hospital stay (days) (24.5 [10.25, 38.5] vs. 22 [8, 40], p = 0.322) in the 1:3 propensity score matching analysis.

Conclusion: In this retrospective study of trauma resuscitation, those receiving intubation with ketamine had greater hemodynamic instability than those receiving etomidate. However, there was no significant difference in clinical outcomes between patients sedated with ketamine and those treated with etomidate.

Keywords: Etomidate; Ketamine; Rapid sequence intubation; Resuscitation; Trauma.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Flowchart for the selection of study population. CPR: cardiopulmonary resuscitation
See this image and copyright information in PMC

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