Paediatric anaesthesia
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Paediatric anaesthesia · Sep 2004
Multicenter Study Clinical TrialRopivacaine in neonates and infants: a population pharmacokinetic evaluation following single caudal block.
The aims of this study were to evaluate pharmacokinetics, efficacy and safety of ropivacaine in infants aged 0-12 months following a single caudal injection. ⋯ Following a caudal block with ropivacaine 2 mg x kg(-1) plasma concentrations of unbound ropivacaine were well below threshold levels for toxicity in adults. Apparent volume of distribution is unchanged, apparent unbound clearance increases and the terminal half-life decreases with age in 0-12-month-old neonates and infants. The postoperative pain management provided adequate analgesia and was well tolerated.