What type of study is this?

This is a Quantitative Study study.

September 30, 2025Anesthesiology

Revisiting infusion rate limitations for continuous lumbar plexus blocks in children and adolescents with 0.2% ropivacaine: a pharmacokinetic analysis

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Pharmacokinetics of ropivacaine and its metabolite in children using lumbar plexus blocks highlights dosing safety.

Simulations show unbound plasma ropivacaine and metabolite PPX concentrations approach toxic thresholds.
In a cohort of 20 children, bolus doses of 2mg/kg and infusions at 0.4mg/kg/h were analyzed over 26 hours.
Continuous infusion was linked to higher plasma concentrations, suggesting reconsideration of dosing strategies.
Findings support timed boluses instead of continuous infusion to manage toxicity risks effectively.

Sunder et al. (2025) studied this question.

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