Introduction
- Favorable characteristics include reliably good intubating conditions, a rapid onset and offset of activity, non-renal elimination, and maintenance of the cardiorespiratory drive
- Unfortunately, etomidate causes relative adrenal insufficiency in up to 90% of patients after a single dose for up to 48 hours
- Serious safety concerns first surfaced in the early 1980's when continuous infusions were associated with increased mortality in trauma patients.
sequence intubation in emergency departments in the United
States.
Etomidate Overview
| Parameter | Etomidate |
|---|---|
| Mechanism of Action | Short-acting hypnotic, which appears to have gamma-aminobutyric acid (GABA)-like effects. Unlike the barbiturates, etomidate reduces subcortical inhibition at the onset of hypnosis while inducing neocortical sleep. |
| Dose | 0.3 mg/kg IV (range 0.2 to 0.6 mg/kg) |
| Adverse Effects | Injection site pain (20%) Nausea, Vomiting Myoclonus (32%) |
| Kinetics | Onset ~20 seconds Duration 4 to 10 minutes Routes IV only Renal Excretion 75% |
| Administration | IV push followed by paralytics and flush |
Clinical Detail
- McPhee C, et al. Single-dose etomidate is not associated with increased mortality in ICU patients with sepsis:
- den Brinker M, et al. One single dose of etomidate negatively influences adrenocortical performance for at least 24h in children with meningococcal sepsis. Intensive Care Med. 2008 Jan;34(1):163-8.
- Tekwani KL, et al. A comparison of the effects of etomidate and midazolam on hospital length of stay in patients with suspected sepsis: a prospective, randomized study. Ann Emerg Med. 2010 Nov;56(5):481-9.
- Jabre P, et al. Etomidate versus ketamine for rapid sequence intubation in acutely ill patients: a multicentre randomised controlled trial. Lancet. 2009 Jul 25;374(9686):293-300
- Cuthbertson BH, et al. The effects of etomidate on adrenal responsiveness and mortality in patients with septic shock. Intensive Care Med. 2009 Nov;35(11):1868-76.
- Chan CM, et al. Etomidate is associated with mortality and adrenal insufficiency in sepsis: a meta-analysis.
Analytics. Retrieved November 6, 2018, from http://www.micromedexsolutions.com/
analysis of a large electronic ICU database. Crit Care Med 2013; 41: 774-83.
Evidence
| Author, Year | Design | Sample Size | Etomidate + Comparator Regimen | Outcome (Comparator vs Etomidate) |
|---|---|---|---|---|
| McPhee C, 2013 | Retrospective cohort study | n=2014 | Not published | No difference in ICU and hospital mortality, shock, duration of mechanical ventilation, ICU or hospital length of stay, or vasopressor use |
| Chan CM, 2012 | Meta-analysis | n=1,623 | Etomidate (mostly 0.3 mg/kg) vs comparator | ↑ All-cause mortality RR 1.20 (95% CI 1.02-1.42) ↑ Adrenal insufficiency RR 1.33 (95% CI 1.22-1.46) |
| Tekwani K, 2010 | RCT | n=122 | Etomidate 0.3 mg/kg vs midazolam 0.1 mg/kg | No significant differences in median hospital LOS (9.5 vs 7.3 days), ICU LOS (4.2 vs 3.1 days), In-hospital mortality (26% vs 43%) or ventilator days |
| Jabre P, 2009 | RCT | n=469 | Etomidate 0.3 mg/kg vs Ketamine 2 mg/kg | No difference in SOFA score, 28 day mortality, Vent free days, vasopressor support, or GCS |
| Cuthbertson, 2009 | a-priori sub-study of the CORTICUS trial | n=499 | Not published | ↑ non-responders to corticotropin with etomidate ↑ 28-day mortality in univariate analysis (P = 0.02) with etomidate Hydrocortisone administration did not change the mortality of patients receiving etomidate (45 vs. 40%) |
| den Brinker, 2008 | Retrospective | n=29 | Etomidate 0.29 mg/kg x 1 | Mean cortisol levels were 3.2 times lower in case of etomidate use Mean ACTH levels were 4.1 times higher in etomidate use |
Conclusions
- Jabre P, et al. Etomidate versus ketamine for rapid sequence intubation in acutely ill patients: a multicentre randomised controlled trial. Lancet. 2009 Jul 25;374(9686):293-300
- Cuthbertson BH, et al. The effects of etomidate on adrenal responsiveness and mortality in patients with septic shock. Intensive Care Med. 2009 Nov;35(11):1868-76.
- Chan CM, et al. Etomidate is associated with mortality and adrenal insufficiency in sepsis: a meta-analysis.
Tekwani KL, et al. A comparison of the effects of etomidate and midazolam on hospital length of stay in patients
with suspected sepsis: a prospective, randomized study. Ann Emerg Med. 2010 Nov;56(5):481-9.
References
- Etomidate: pharmacokinetics. (2018). In Micromedex [Electronic version].Greenwood Village, CO: Truven Health
- Analytics. Retrieved November 6, 2018, from http://www.micromedexsolutions.com/
- McPhee C, et al. Single-dose etomidate is not associated with increased mortality in ICU patients with sepsis:
- analysis of a large electronic ICU database. Crit Care Med 2013; 41: 774-83.
- den Brinker M, et al. One single dose of etomidate negatively influences adrenocortical performance for at least
- 24h in children with meningococcal sepsis. Intensive Care Med. 2008 Jan;34(1):163-8.
- Tekwani KL, et al. A comparison of the effects of etomidate and midazolam on hospital length of stay in patients
- with suspected sepsis: a prospective, randomized study. Ann Emerg Med. 2010 Nov;56(5):481-9.
- Jabre P, et al. Etomidate versus ketamine for rapid sequence intubation in acutely ill patients: a multicentre
- randomised controlled trial. Lancet. 2009 Jul 25;374(9686):293-300
- Cuthbertson BH, et al. The effects of etomidate on adrenal responsiveness and mortality in patients with septic
- shock. Intensive Care Med. 2009 Nov;35(11):1868-76.
- Chan CM, et al. Etomidate is associated with mortality and adrenal insufficiency in sepsis: a meta-analysis.
Tags:etomidate
RSI
septic shock
adrenal suppression
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