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Low-dose ketamine safely reduces acute pain in the ED with a more rapid and shorter effect than morphine.

Evan S Schwarz

Annals of Internal Medicine April 1, 2024 DOI: 10.7326/J24-0017 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Meta-analysis Randomized Peer reviewed
Population Patients with acute pain in the emergency department
Interventions Low-dose ketamine Morphine
Topics Esketamine Ketamine
Keywords Pain management Emergency medicine Ketamine therapy Analgesics Clinical trials
Key findings Low-dose ketamine provides comparable pain relief to morphine for acute pain in the emergency department but with a different side effect profile.

Abstract

Guo J, Zhao F, Bian J, et al. Low-dose ketamine versus morphine in the treatment of acute pain in the emergency department: a meta-analysis of 15 randomized controlled trials. Am J Emerg Med. 2024;76:140-149. 38071883.

Comparable studies

Other systematic reviews and meta-analyses on ketamine, most cited first.

Study Year Design Participants
The effect of a single dose of intravenous ketamine on suicidal ideation: a systematic review and individual participant data meta-analysis Depressed patients with suicidal ideation at baseline 2017 Systematic review and individual participant data meta-analysis n = 167
Ketamine use: a review Ketamine users 2011 Systematic review
Ketamine and Other NMDA Antagonists: Early Clinical Trials and Possible Mechanisms in Depression Participants with major depression in placebo-controlled, double-blind, randomized... 2015 Systematic review and meta-analysis
Ketamine and postoperative pain – a quantitative systematic review of randomised trials Surgical patients from 25 countries 2004 Systematic review n = 2,839
Side-effects associated with ketamine use in depression: a systematic review. Patients with depression 2018 Systematic review

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