Intensive Care Medicine

, 34:2226 | Cite as

A comparison of epinephrine and norepinephrine in critically ill patients

  • John A. Myburgh
  • Alisa Higgins
  • Alina Jovanovska
  • Jeffrey Lipman
  • Naresh Ramakrishnan
  • John Santamaria
  • the CAT Study investigators
Original

Abstract

Objective

To determine whether there was a difference between epinephrine and norepinephrine in achieving a mean arterial pressure (MAP) goal in intensive care (ICU) patients.

Design

Prospective, double-blind, randomised-controlled trial.

Setting

Four Australian university-affiliated multidisciplinary ICUs.

Patients and participants

Patients who required vasopressors for any cause at randomisation. Patients with septic shock and acute circulatory failure were analysed separately.

Interventions

Blinded infusions of epinephrine or norepinephrine to achieve a MAP ≥70 mmHg for the duration of ICU admission.

Measurements

Primary outcome was achievement of MAP goal >24 h without vasopressors. Secondary outcomes were 28 and 90-day mortality. Two hundred and eighty patients were randomised to receive either epinephrine or norepinephrine. Median time to achieve the MAP goal was 35.1 h (interquartile range (IQR) 13.8–70.4 h) with epinephrine compared to 40.0 h (IQR 14.5–120 h) with norepinephrine (relative risk (RR) 0.88; 95% confidence interval (CI) 0.69–1.12; P = 0.26). There was no difference in the time to achieve MAP goals in the subgroups of patients with severe sepsis (n = 158; RR 0.81; 95% CI 0.59–1.12; P = 0.18) or those with acute circulatory failure (n = 192; RR 0.89; 95% CI 0.62–1.27; P = 0.49) between epinephrine and norepinephrine. Epinephrine was associated with the development of significant but transient metabolic effects that prompted the withdrawal of 18/139 (12.9%) patients from the study by attending clinicians. There was no difference in 28 and 90-day mortality.

Conclusions

Despite the development of potential drug-related effects with epinephrine, there was no difference in the achievement of a MAP goal between epinephrine and norepinephrine in a heterogenous population of ICU patients.

Keywords

Epinephrine Norepinephrine Adrenaline Noradrenaline Shock Sepsis 

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • John A. Myburgh
    • 1
  • Alisa Higgins
    • 2
  • Alina Jovanovska
    • 1
  • Jeffrey Lipman
    • 3
  • Naresh Ramakrishnan
    • 4
  • John Santamaria
    • 5
  • the CAT Study investigators
  1. 1.Department of Intensive Care MedicineThe St George HospitalSydneyAustralia
  2. 2.Australian and New Zealand Intensive Care Research CentreMonash UniversityMelbourneAustralia
  3. 3.Department of Intensive Care MedicineRoyal Brisbane Hospital and University of QueenslandBrisbaneAustralia
  4. 4.Intensive Therapy UnitRoyal North Shore HospitalSydneyAustralia
  5. 5.Department of Intensive Care MedicineSt Vincent’s HospitalMelbourneAustralia

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