Efficacy of ketamine versus etomidate for rapid sequence intubation of critically ill patients in terms of mortality and success rate: a systematic review and meta-analysis of randomized controlled trials.

We found no significant differences with regard to 28-day mortality, first-pass success rate, or the incidence of postinduction cardiac arrest Ketamine showed a trend toward a higher risk of postinduction hypotension, but the association was not statistically robust.

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