Clinical pharmacology of cisatracurium during nitrous oxide-propofol anesthesia in children

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WangNing ShangGuan1, QingQuan Lian, Jun Li

  • 1Department of Anesthesiology, West China Hospital, SiChuan University, ChengDu, China. sgwning@sina.com

Journal of Clinical Anesthesia
|October 22, 2008
PubMed

Insights

Higher doses of cisatracurium in children did not significantly shorten onset time. Three times the effective dose provided similar onset to four times the effective dose, with longer durations.

Area of Science:

  • Anesthesiology
  • Pharmacology
  • Pediatric Medicine

Background:

  • Cisatracurium is a neuromuscular blocking agent used in pediatric anesthesia.
  • Optimizing neuromuscular blockade onset and duration is crucial for surgical safety in children.

Purpose of the Study:

  • To evaluate the effects of three different doses of cisatracurium in pediatric patients.
  • To determine if increasing cisatracurium dosage accelerates neuromuscular blockade onset time.

Main Methods:

  • 75 pediatric patients (15-60 months) received nitrous oxide-propofol anesthesia.
  • Patients were randomized to receive cisatracurium at 0.1, 0.15, or 0.2 mg/kg.
  • Neuromuscular block was assessed using accelerometry, measuring onset time, peak effect duration, and recovery.

Main Results:

  • Cisatracurium did not affect heart rate or blood pressure.
  • Higher cisatracurium doses (0.15 and 0.2 mg/kg) resulted in shorter onset times and longer durations of action compared to the lowest dose (0.1 mg/kg).
  • No significant difference in onset time was observed between the 0.15 and 0.2 mg/kg doses.

Conclusions:

  • Increasing cisatracurium dosage beyond three times the effective dose does not significantly shorten onset time in young children.
  • The 0.15 mg/kg dose offers a comparable onset to the 0.2 mg/kg dose with potentially longer duration of effect.
Abstract

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