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Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
Critically Ill Patients with Renal Hyperfiltration: Optimizing Antibiotic Dose
Jorge Rico-Fontalvo1, José Correa-Guerrero2, María Cristina Martínez-Ávila3
1Colombian Association of Nephrology and Hypertension, Bogota, Colombia.
Abstract:
Renal hyperfiltration (RHF) is a prevalent phenomenon in critically ill patients characterized by augmented renal clearance (ARC) and increased of elimination of renally eliminated medications. Multiple risk factors had been described and potential mechanisms may contribute to the occurrence of this condition. RHF and ARC are associated with the risk of suboptimal exposure to antibiotics increasing the risk of treatment failure and unfavorable patient outcomes. The current review discusses the available evidence related to the RHF phenomenon, including definition, epidemiology, risk factors, pathophysiology, pharmacokinetic variability, and considerations for optimizing the dosage of antibiotics in critically ill patients.
Insights
Renal hyperfiltration (RHF) in critically ill patients leads to augmented renal clearance (ARC), increasing drug elimination. This review examines RHF, its risk factors, and optimizing antibiotic dosing to improve patient outcomes.
Area of Science:
- Nephrology
- Critical Care Medicine
- Pharmacology
Background:
- Renal hyperfiltration (RHF) and augmented renal clearance (ARC) are common in critically ill patients.
- This condition increases the elimination of renally cleared medications, including antibiotics.
- Suboptimal drug exposure due to RHF/ARC can lead to treatment failure and poor patient outcomes.
Purpose of the Study:
- To review the current evidence on renal hyperfiltration in critically ill patients.
- To discuss the definition, epidemiology, risk factors, and pathophysiology of RHF.
- To explore pharmacokinetic variability and strategies for optimizing antibiotic dosing in this population.
Main Methods:
- Literature review of studies on renal hyperfiltration and augmented renal clearance.
- Analysis of risk factors, underlying mechanisms, and clinical implications.
- Examination of antibiotic dosing considerations in critically ill patients with RHF/ARC.
Main Results:
- RHF and ARC are significant factors influencing drug clearance in critical illness.
- Multiple risk factors and potential mechanisms contribute to RHF.
- Optimizing antibiotic dosing is crucial to prevent suboptimal drug exposure.
Conclusions:
- Renal hyperfiltration is a critical consideration in managing critically ill patients.
- Understanding RHF/ARC is essential for effective antibiotic therapy.
- Further research is needed to refine antibiotic dosing strategies for RHF patients.
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