Does intramuscular ondansetron have an effect on intramuscular ketamine-associated vomiting in children? A

Amir Nejati1, Seyyedhossein Seyyedhoseini Davarani1, Mohammad Taghi Talebian1

  • 1Department of Emergency Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Insights

Intramuscular ondansetron significantly reduced vomiting in children receiving ketamine for procedural sedation. This finding supports ondansetron as an effective antiemetic for managing ketamine-associated nausea and vomiting.

Area of Science:

  • Pediatric Emergency Medicine
  • Pharmacology
  • Clinical Trials

Background:

  • Procedural sedation with ketamine is common in pediatric emergency departments.
  • Ketamine administration can lead to significant nausea and vomiting, impacting patient recovery.
  • Effective antiemetic strategies are needed to mitigate ketamine-associated gastrointestinal side effects.

Purpose of the Study:

  • To evaluate the efficacy of intramuscular ondansetron in preventing ketamine-associated vomiting in children.
  • To compare the incidence of vomiting between children receiving ketamine alone versus ketamine with intramuscular ondansetron.

Main Methods:

  • A randomized, double-blind, placebo-controlled, parallel-group clinical trial was conducted.
  • Participants included children aged 6 months to 16 years receiving ketamine for procedural sedation.
  • Patients received either ketamine alone or ketamine plus intramuscular ondansetron.

Main Results:

  • Vomiting occurred in 12.5% of patients receiving ondansetron versus 21.5% in the control group during recovery (P=0.03).
  • Vomiting before discharge was significantly lower in the ondansetron group (1.8%) compared to the control group (9.2%) (P<0.001).
  • Intramuscular ondansetron demonstrated a statistically significant reduction in ketamine-associated vomiting.

Conclusions:

  • Intramuscular ondansetron is an effective intervention for controlling ketamine-associated vomiting in pediatric procedural sedation.
  • The findings support the routine use of intramuscular ondansetron to improve outcomes for children receiving ketamine sedation.
Abstract

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