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Clinical sedation and bispectral index in burn children receiving gamma-hydroxybutyrate

Anne-Françoise Rousseau1, Didier Ledoux, Nada Sabourdin

  • 1Intensive Care Department and Burn Centre, University Hospital, Liège, Belgium. afrousseau@chu.ulg.ac.be

Paediatric Anaesthesia
|December 14, 2011
PubMed

Insights

Gamma-hydroxybutyrate (GHB) effectively sedates pediatric burn patients. Higher doses (25-50 mg/kg) provide deeper sedation, but 50 mg/kg prolongs recovery time.

Area of Science:

  • Pediatric Anesthesiology
  • Burn Care
  • Pharmacology

Background:

  • Gamma-hydroxybutyrate (GHB) demonstrates potential as a hypnotic agent in burn patients due to favorable respiratory and hemodynamic profiles.
  • Limited data exists on the clinical and electroencephalographic (EEG) sedative effects of GHB in pediatric populations.

Purpose of the Study:

  • To evaluate the clinical and EEG effects of escalating intravenous (IV) doses of GHB in children undergoing burn wound care.
  • To determine the optimal dosage for safe and effective sedation in this vulnerable group.

Main Methods:

  • A prospective, randomized study involving 36 pediatric burn patients.
  • Patients received IV GHB at doses of 10, 25, or 50 mg/kg, following oral premedication.
  • Continuous monitoring of respiratory rate, heart rate, pulse oximetry, and Bispectral Index (BIS); clinical sedation assessed via Observer's Assessment of Alertness and Sedation (OAAS) Score.

Main Results:

  • Bispectral Index (BIS) values decreased across all GHB dose groups.
  • Lower BIS nadir values and OAAS scores were observed in the 25 and 50 mg/kg groups compared to the 10 mg/kg group.
  • Sedation duration was found to be dose-dependent, with longer effects at higher GHB concentrations.

Conclusions:

  • Intravenous GHB administration leads to a decrease in BIS, correlating with clinical sedation assessed by OAAS scores.
  • Doses of 25 or 50 mg/kg of GHB can achieve deep sedation safely in pediatric burn patients.
  • The 50 mg/kg dose, while effective, is associated with a prolonged duration of clinical sedation.
Abstract

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