Pharmacokinetics of alfentanil in newborn premature infants and older children.
Dev Pharmacol Ther
; 13(1): 21-7, 1989.
Article
em En
| MEDLINE
| ID: mdl-2505988
Because developmental pharmacokinetics appear to be closely associated with anatomic and physiologic changes that occur with growth, we were interested in determining the disposition and elimination of alfentanil in premature infants and older children. The pharmacokinetic profile of alfentanil was determined in 6 premature infants requiring sedation for medical management or analgesia for stressful intensive-care procedures. These pharmacokinetic profiles were compared with pharmacokinetic profiles determined in 9 older infants and children undergoing operative procedures that required invasive monitoring. In both groups the plasma decay curves best fit a 2-compartment model. Compared with older children, premature infants demonstrated a significantly larger apparent volume of distribution (1.0 +/- 0.39 vs. 0.48 +/- 0.19 l/kg), a smaller clearance (2.2 +/- 2.4 vs. 5.6 +/- 2.4 ml/kg/min) and a markedly prolonged elimination half-life (525 +/- 305 vs. 60 +/- 11 min).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Recém-Nascido Prematuro
/
Fentanila
/
Anestésicos
Tipo de estudo:
Prognostic_studies
Limite:
Child
/
Child, preschool
/
Humans
/
Infant
/
Newborn
Idioma:
En
Revista:
Dev Pharmacol Ther
Ano de publicação:
1989
Tipo de documento:
Article
País de publicação:
Suíça