RESUMO
BACKGROUND: Pharmacokinetics and optimal dosing of piperacillin tazobactam (PT) have not been well studied in pediatric patients undergoing extracorporeal oxygenation membrane (ECMO). AIM: To describe piperacillin plasmatic concentration and evaluate achievement of pharmaccokinetic/pharmacodinamic objective in patients on ECMO support. METHOD: We report three pediatric patients admitted to the Pediatric Intensive Care Unit, treated with PT undergoing ECMO. Plasmatic concentrations of piperacillin were obtained in the middle of the dosing interval using high performance liquid chromatography. RESULTS: Plasmatic concentrations were 51,7-14,1 and 6,5 µg/mL for patient A, B and C respectively. Only one patient reached adequate concentrations. CONCLUSION: These preliminary results suggest that availability of plasmatic concentrations of piperacillin could optimize the achievement of pharmacokinetic/pharmacodynamic objectives in pediatric patients on ECMO support.
Assuntos
Oxigenação por Membrana Extracorpórea , Antibacterianos , Criança , Humanos , Ácido Penicilânico , Piperacilina , Combinação Piperacilina e TazobactamRESUMO
Resumen Introducción: Se desconocen las alteraciones farmacocinéticas de piperacilina/tazobactam (PT) en pacientes pediátricos que requieren de membrana de oxigenación extracorpórea (ECMO) y cómo dosificar adecuadamente dicho antimicrobiano. Objetivo: Describir las concentraciones plasmáticas (CP)y evaluar el cumplimiento del objetivo farmacocinético/famacodinámico de piperacilina en pacientes pediátricos en soporte con ECMO. Métodos: Presentamos tres pacientes pediátricos en tratamiento con PT que requirieran de ECMO en los que se midieron CP de piperacilina en la mitad del intervalo de dosificación mediante cromatografía liquida de alta resolución. Resultados: Las CP fueron 51,7-14,1 y 6,5 μg/mL para los pacientes A, B y C, respectivamente. Sólo se alcanzaron CP adecuadas en un paciente. Conclusión: Estos resultados preliminares sugieren que la disponibilidad de CP de piperacilina podría optimizar el cumplimiento de los objetivos farmacocinéticos/farmacodinámicos en pacientes pediátricos en soporte con ECMO.
Abstract Background: Pharmacokinetics and optimal dosing of piperacillin tazobactam (PT) have not been well studied in pediatric patients undergoing extracorporeal oxygenation membrane (ECMO). Aim: To describe piperacillin plasmatic concentration and evaluate achievement of pharmaccokinetic/pharmacodinamic objective in patients on ECMO support. Method: We report three pediatric patients admitted to the Pediatric Intensive Care Unit, treated with PT undergoing ECMO. Plasmatic concentrations of piperacillin were obtained in the middle of the dosing interval using high performance liquid chromatography. Results: Plasmatic concentrations were 51,7-14,1 and 6,5 μg/mL for patient A, B and C respectively. Only one patient reached adequate concentrations. Conclusion: These preliminary results suggest that availability of plasmatic concentrations of piperacillin could optimize the achievement of pharmacokinetic/pharmacodynamic objectives in pediatric patients on ECMO support.