Related Experiment Videos
Gentamicin and vancomycin removal by continuous venovenous hemofiltration.
A H Thomson1, A C Grant, R S Rodger
1Department of Medicine and Therapeutics, Stobhill General Hospital, Glasgow, Scotland.
DICP : the Annals of Pharmacotherapy
|February 1, 1991
Summary
This study explored vancomycin and gentamicin dosing for a patient on continuous venovenous hemofiltration. Consistent daily doses effectively maintained therapeutic drug levels within target ranges.
Area of Science:
- Pharmacokinetics and Pharmacodynamics
- Nephrology
- Critical Care Medicine
Background:
- Continuous venovenous hemofiltration (CVVH) alters drug clearance, necessitating dose adjustments for antibiotics like vancomycin and gentamicin.
- Optimizing antibiotic dosing in critically ill patients on renal replacement therapy is crucial for efficacy and safety.
Observation:
- A 58-year-old male patient on long-term CVVH was monitored for vancomycin and gentamicin disposition.
- Drug clearance estimates were obtained using Bayesian analysis and demonstrated consistency throughout the treatment period.
Findings:
- Single daily dosing of vancomycin and gentamicin achieved and maintained target therapeutic drug concentrations.
- Peak vancomycin levels were between 25-40 mg/L, with troughs <10 mg/L.
- Peak gentamicin levels were 5-10 mg/L, with troughs <2 mg/L.
Implications:
- This dosing strategy may be effective for vancomycin and gentamicin in patients undergoing long-term CVVH.
- Bayesian pharmacokinetic analysis aids in predicting and managing drug levels during continuous renal replacement therapy.
- Further studies are warranted to confirm these findings in a broader patient population undergoing CVVH.