• Laura C McPhee, Omar Badawi, Gilles L Fraser, Patricia A Lerwick, Richard R Riker, Ilene H Zuckerman, Christine Franey, and David B Seder.
• Division of Pulmonary and Critical Care Medicine, Maine Medical Center, Portland, ME, USA.
• Crit. Care Med.. 2013 Mar 1;41(3):774-83.

ObjectiveRetrospective analyses of several trials suggest etomidate may be unsafe for intubation in patients with sepsis. We evaluated the association of etomidate and mortality in a large cohort of septic patients to determine if single-dose etomidate was associated with increased in-hospital mortality.Design And SettingRetrospective cohort study at the Philips eICU Research Institute ICU clinical database.InterventionsNone.PatientsAmong 741,036 patients monitored from 2008 through 2010, we identified 2,014 adults intubated in the ICU 4-96 hrs after admission, having clinical criteria consistent with sepsis, severe sepsis, or septic shock. In all, 1,102 patients received etomidate and 912 received other induction agents for intubation.Measurements And Main ResultsThe primary endpoint was in-hospital mortality, but we also evaluated demographic and clinical factors, severity of illness, ICU mortality, ICU length of stay, hospital length of stay, ventilator days, and vasopressor days. Competing risk Cox proportional hazard regression models were used for primary outcomes. Demographics and illness severity were similar between the groups. Hospital mortality was similar between the groups (37.2% vs. 37.8%, p = 0.77), as were ICU mortality (30.1% vs. 30.2%, p = 0.99), ICU length of stay (8.7 days vs. 8.9 days, p = 0.66), and hospital length of stay (15.2 vs. 14.6 days, p = 0.31). More patients in the etomidate group received steroids before and after intubation (52.9% vs. 44.5%, p < 0.001), but vasopressor use and duration of mechanical ventilation were similar. No regression model showed an independent association of etomidate with mortality, shock, duration of mechanical ventilation, ICU or hospital length of stay, or vasopressor use. A hospital mortality model limited to only patients with septic shock (n = 650) also showed no association of etomidate and hospital mortality.ConclusionIn a mixed-diagnosis group of critically ill patients with sepsis, severe sepsis, and septic shock, single-dose etomidate administration for intubation in the ICU was not associated with higher mortality or other adverse clinical outcomes.

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