Comparison of etomidate and ketamine for induction during rapid sequence intubation of adult trauma patients
Open accessAbstract
Study objective Induction doses of etomidate during rapid sequence intubation cause transient adrenal dysfunction, but its clinical significance on trauma patients is uncertain. Ketamine has emerged as an alternative for rapid sequence intubation induction. Among adult trauma patients intubated in the emergency department, we compare clinical outcomes among those induced with etomidate and ketamine. Methods The study entailed a retrospective evaluation of a 4-year (January 2011 to December 2014) period spanning an institutional protocol switch from etomidate to ketamine as the standard induction agent for adult trauma patients undergoing rapid sequence intubation in the emergency department of an academic Level I trauma center. The primary outcome was hospital mortality evaluated with multivariable logistic regression, adjusted for age, vital signs, and injury severity and mechanism. Secondary outcomes included ICU-free days and ventilator-free days evaluated with multivariable ordered logistic regression using the same covariates. Results The analysis included 968 patients, including 526 with etomidate and 442 with ketamine. Hospital mortality was 20.4% among patients induced with ketamine compared with 17.3% among those induced with etomidate (adjusted odds ratio [OR] 1.41; 95% confidence interval [CI] 0.92 to 2.16). Patients induced with ketamine had ICU-free days (adjusted OR 0.80; 95% CI 0.63 to 1.00) and ventilator-free days (adjusted OR 0.96; 95% CI 0.76 to 1.20) similar to those of patients induced with etomidate. Conclusion In this analysis spanning an institutional protocol switch from etomidate to ketamine as the standard rapid sequence intubation induction agent for adult trauma patients, patient-centered outcomes were similar for patients who received etomidate and ketamine.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
With a favorable hemodynamic profile and strong analgesic effect, ketamine is quickly becoming the preferred induction agent for trauma patients.
“With a favorable hemodynamic profile and strong analgesic effect, ketamine is quickly becoming the preferred induction agent for trauma patients.100”
From Airway Management in Trauma (2018) · cites this paper as [100]
The Introduction (Background and Importance; page unavailable) describes ketamine’s favorable hemodynamic effects and its emergence as an alternative for trauma intubation. It does not discuss a strong analgesic effect or establish that ketamine is becoming the preferred agent generally; the Background says it remains unclear which agent should be preferred, and the Discussion reports no improvement in patient-centered outcomes over etomidate. (LLM, conf=0.88)
Experimental — accuracy not yet measuredIn North America, etomidate has been the most commonly used induction agent used for RSI.
“In North America, etomidate has been the most commonly used induction agent used for RSI.”
From Airway Management in Trauma (2018) · cites this paper as [100]
The Discussion (page unavailable) reports that etomidate was used in more than 90% of emergency-department RSIs recorded by a large multicenter registry, supporting its predominance in that setting. The passage does not establish that it was the most commonly used agent for RSI across all of North America or outside emergency departments. (LLM, conf=0.82)
Experimental — accuracy not yet measuredOwing to the association between using etomidate and adrenal suppression, many institutions have moved to alternative induction agents.
“Owing to the association between using etomidate and adrenal suppression, many institutions have moved to alternative induction agents.1,100”
From Airway Management in Trauma (2018) · cites this paper as [100]
The Introduction (Importance) states that etomidate causes transient adrenal suppression. The Introduction (Goals of This Investigation) says the authors’ institution switched from etomidate to ketamine because of concerns about adrenal dysfunction, but the paper does not establish that many institutions made that switch. (LLM, conf=0.88)
Experimental — accuracy not yet measuredA study comparing standard full-dose ketamine with etomidate in trauma patients showed no survival benefit of one agent over the other.
“A study comparing standard full-dose ketamine with etomidate in trauma patients showed no survival benefit of one agent over the other.100”
From Airway Management in Trauma (2018) · cites this paper as [100]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Segmented regression analysis of interrupted time series studies in medication use research
Wagner, A. K., Soumerai, S. B., Zhang, F., & Ross-Degnan, D. (2002) · Journal of Clinical Pharmacy and Therapeutics · doi:10.1046/j.1365-2710.2002.00430.x · Cited by 3,279 · see citing works
Acute secondary adrenal insufficiency after traumatic brain injury: a prospective study
Cohan, P., Wang, C., McArthur, D. L., Cook, S. W., Dusick, J. R., Armin, B., Swerdloff, R., Vespa, P., Muizelaar, J. P., Cryer, H. G., et al. (2005) · Critical Care Medicine · doi:10.1097/01.ccm.0000181735.51183.a7 · Cited by 282 · see citing works
Hildreth, A. N., Mejia, V. A., Maxwell, R. A., Smith, P. W., Dart, B. W., & Barker, D. E. (2008) · Journal of Trauma: Injury, Infection & Critical Care · doi:10.1097/ta.0b013e31818255e8 · Cited by 197 · see citing works
Malerba, G., Romano-Girard, F., Cravoisy, A., Dousset, B., Nace, L., L�vy, B., & Bollaert, P.-E. (2005) · Intensive Care Medicine · doi:10.1007/s00134-004-2550-8 · Cited by 179 · see citing works
Flagged first, then by citations
Research works printed but not linked: 39
- [3]Mayglothling J Duane T Gibbs M Emergency tracheal intubation immediately following traumatic injury: an Eastern Association for the Surgery of Trauma practice management guideline J Trauma Acute Care Surg 2012 73 5 S333 S340 23114490
- [4]Smith DC Bergen A Smithline H Kirschner R A trial of etomidate for rapid sequence intubation in the emergency department J Emerg Med 2000 18 1 13 16 10645829
- [5]Sehdev RS David SAD Korana K Ketamine for rapid sequence induction in patients with head injury in the emergency department Emerg Med Australas 2006 18 1 37 44 16454773
- [6]Miller RD Miller’s Anesthesia New York, NY Elsevier/Churchill Livingstone 2005 346 348
- [7]Craven R Ketamine Anaesthesia 2007 62 s1 48 53 17937714
- [8]Bergen JM Smith DC A review of etomidate for rapid sequence intubation in the emergency department J Emerg Med 1997 15 2 221 230 9144065
- [9]Paris A Philipp M Tonner PH Activation of alpha 2B-adrenoceptors mediates the cardiovascular effects of etomidate Anesthesiology 2003 99 4 889 895 14508322
- [11]Duthie DJR Fraser R Nimmo WS Effect of induction of anaesthesia with etomidate on corticosteroid synthesis in man Br J Anaesth 1985 57 2 156 159 2982387
- [12]De Coster R Helmers JH Noorduin H Effect of etomidate on cortisol biosynthesis: site of action after induction of anaesthesia Acta endocrinol 1985 110 4 526 531 3004088
- [13]Diago MC Amado JA Otero M Anti-adrenal action of a subanaesthetic dose of etomidate Anaesthesia 1988 43 8 644 645 3421456
- [14]Vinclair M Broux C Faure P Duration of adrenal inhibition following a single dose of etomidate in critically ill patients Intensive Care Med 2008 34 4 714 719 18092151
- [15]Schenarts CL Burton JH Richard RR Adrenocortical dysfunction following etomidate induction in emergency department patients Acad Emerg Med 2001 8 1 1 7 11136139
- [16]Absalom A Pledger D Kong A Adrenocortical function in critically ill patients 24h after a single dose of etomidate Anaesthesia 1999 54 861 867 10460557
- [17]Pagel PS Kampine JP Schmeling JP Ketamine depresses myocardial contractility as evaluated by the preload recruitable stroke work relationship in chronically instrumented dogs with autonomic nervous system blockade Anesthesiology 1992 76 4 564 572 1550282
- [18]Dewhirst E Frazier WJ Leder M Cardiac arrest following ketamine administration for rapid sequence intubation J Intensive Care Med 2013 28 6 375 379 22644454
- [19]Scherzer D Leder M Tobias JD Pro-con debate: etomidate or ketamine for rapid sequence intubation in pediatric patients J Pediatr Pharmacol Ther 2012 17 2 142 149 23118665 PMC3470433
- [20]Filanovsky Y Miller P Kao J Myth: ketamine should not be used as an induction agent for intubation in patients with head injury CJEM 2010 12 02 154 157 20219164
- [21]Cohen L Athaide V Wickham ME The effect of ketamine on intracranial and cerebral perfusion pressure and health outcomes: a systematic review Ann Emerg Med 2015 65 1 43 51 25064742
- [22]Warner KJ Cuschieri J Jurkovich GJ Single-dose etomidate for rapid sequence intubation may impact outcome after severe injury J Trauma Acute Care Surg 2009 67 1 45 50 19590307
- [24]Cotton BA Guillamondegui OD Fleming SB Increased risk of adrenal insufficiency following etomidate exposure in critically injured patients Arch Surg 2008 143 1 62 67 18209154
- [25]Asehnoune K Mahe PJ Seguin P Etomidate increases susceptibility to pneumonia in trauma patients Intensive Care Med 2012 38 10 1673 1682 22777514
- [27]Bernard F Outtrim J Menon DK Incidence of adrenal insufficiency after severe traumatic brain injury varies according to definition used: clinical implications Br J Anaesth 2006 96 1 72 76 16311283
- [28]Schoenfeld DA Bernard GR Statistical evaluation of ventilator-free days as an efficacy measure in clinical trials of treatments for acute respiratory distress syndrome Crit Care Med 2002 30 8 1772 1777 12163791
- [29]Kaji AH Schriger D Green S Looking through the retrospectoscope: reducing bias in emergency medicine chart review studies Ann Emerg Med 2014 64 3 292 24746846
- [30]Harris PA Taylor R Thielke R Research electronic data capture (REDCap) - A metadata-driven methodology and workflow process for providing translational research informatics support J Biomed Inform 2009 42 2 377 381 18929686 PMC2700030
- [31]Haider AH Saleem T Leow JJ Influence of the National Trauma Data Bank on the study of trauma outcomes: is it time to set research best practices to further enhance its impact? J Am Coll Surg 2012 214 5 756 768 22321521 PMC3334459
- [32]Haider AH Hashmi ZG Zafar SN Developing best practices to study trauma outcomes in large databases: an evidence-based approach to determine the best mortality risk adjustment model J Trauma Acute Care Surg 2014 76 4 1061 1069 24662872
- [33]Harrell FE Regression Modeling Strategies With Applications to Linear Models, Logistic Regression, and Survival Analysis 1 New York, NY Springer 2001 23
- [34]Wang R Lagakos SW Ware JH Statistics in medicine—reporting of subgroup analyses in clinical trials N Engl J Med 2007 357 21 2189 2194 18032770
- [35]Matowe LK Leister CA Crivera C Interrupted time series analysis in clinical research Ann Pharmacother 2003 37 7–8 1110 1116 12841825
- [36]Grijalva CG Nuorti JP Arbogast PG Decline in pneumonia admissions after routine childhood immunisation with pneumococcal conjugate vaccine in the USA: a time-series analysis Lancet 2007 369 9568 1179 1186 17416262
- [38]Albert SG Ariyan S Rather A The effect of etomidate on adrenal function in critical illness: a systematic review Intensive care med 2011 37 6 901 910 21373823
- [39]Hohl CM Kelly-Smith CH Yeung TC The effect of a bolus dose of etomidate on cortisol levels, mortality, and health services utilization: a systematic review Ann emerg med 2010 56 2 105 113 20346542
- [41]Brown CA Bair AE Pallin DJ Techniques, success, and adverse events of emergency department adult intubations Ann Emerg Med 2015 65 4 363 370 25533140
- [42]Hinkewich C Green R The impact of etomidate on mortality in trauma patients Can J Anaesth 2014 61 7 650 655 24723214
- [43]Jabre P Combes X Lapostolle F Etomidate versus ketamine for rapid sequence intubation in acutely ill patients: a multicentre randomised controlled trial Lancet 2009 374 9686 293 300 19573904
- [44]Gelissen HP Combes X Laspostolle F Inotropic effects of propofol, thiopental, midazolam, etomidate, and ketamine on isolated human atrial muscle Anesthesiology 1996 84 2 397 403 8602672
- [45]Waxman K Shoemaker WC Lippmann M Cardiovascular effects of anesthetic induction with ketamine Anesth Analg 1980 59 5 355 358 7189381
- [46]Miller M Kruit N Heldreich C Hemodynamic response after rapid sequence induction with ketamine in out-of-hospital patients at risk of shock as defined by the shock index Ann emerg med 2016 27130803
Cited by
Sorted by citations
Kovacs, G., & Sowers, N. (2018) · Emergency Medicine Clinics of North America · doi:10.1016/j.emc.2017.08.006 · Cited by 115 · see citing works
- Authors
- Upchurch, C. P., Grijalva, C. G., Russ, S., Collins, S. P., Semler, M. W., Rice, T. W., Liu, D., Ehrenfeld, J. M., High, K., Barrett, T. W., McNaughton, C. D., & Self, W. H.
- Affiliations
- Vanderbilt University Medical Center (US)
- Corresponding author
- Self, Wesley H.
- ORCID
- Venue
- Annals of Emergency Medicine
- Publisher
- Elsevier BV
- Published
- 2017-01
- Volume
- 69
- Issue
- 1
- Pages
- 24-33.e2
- ISSN
- 0196-0644 (ISSN-L)
- PMC
- PMC5180365
- OpenAlex
- W2567430912
- Cited by
- 94
- References
- 4
- Citations by year
- 2026: 4 · 2025: 10 · 2024: 7 · 2023: 14 · 2022: 12 · 2021: 13 · 2020: 12 · 2019: 10 · 2018: 9 · 2017: 3
- FWCI
- 9.32
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Annals of Emergency Medicine (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Aging (K23GM110469)
- National Institute of General Medical Sciences (UL1 TR000445)
- National Center for Advancing Translational Sciences
- Vanderbilt University (R01AG043471, TL1TR000447)
- School of Medicine, Vanderbilt University
- National Institutes of Health
- Topics
- Health Sciences › Medicine › Anesthesiology and Pain Medicine › Airway Management and Intubation Techniques
- Health Sciences › Medicine › Anesthesiology and Pain Medicine › Anesthesia and Sedative Agents
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Respiratory Support and Mechanisms
- Keywords
- etomidate, ketamine, rapid sequence intubation, induction agents, trauma patients, in-hospital mortality, ICU-free days, ventilator-free days, adrenal dysfunction, emergency department airway management
- MeSH terms
- Adult, Etomidate, Female, Humans, Hypnotics and Sedatives, Intubation, Intratracheal, Ketamine, Male, Middle Aged, Retrospective Studies, Trauma Centers, Wounds and Injuries, Procedural Sedation, Hospital Mortality
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review