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Overdoses of pethidine given to two preterm neonates
1Department of Paediatrics, University of Oulu, Finland.
Acta Paediatrica (Oslo, Norway : 1992)
|March 1, 1997
Summary
Two preterm infants experienced adverse effects from pethidine (an opioid analgesic) overdoses. Neonatal pethidine dosing requires careful individual titration due to significant variability in patient response.
Area of Science:
- Neonatal pharmacology
- Clinical toxicology
Background:
- Opioid analgesics like pethidine are used in neonatal care.
- Accurate dosing is crucial due to immature metabolic pathways in neonates.
Observation:
- Two mechanically ventilated preterm infants received pethidine overdoses.
- Case 1: Appropriate doses led to central nervous system irritability and convulsions due to drug accumulation.
- Case 2: A 10-fold overdose had minimal clinical effect.
Findings:
- Significant individual variability exists in neonatal response to pethidine.
- Drug accumulation and its metabolite (norpethidine) can cause adverse effects.
- Neonatal opioid response is generally unpredictable.
Implications:
- Pethidine and other opioid dosing in neonates must be individualized.
- Close patient monitoring is essential to detect adverse reactions.
- Further research into neonatal opioid pharmacokinetics is warranted.