Is Antimicrobial Treatment Effective During Therapeutic Plasma Exchange? Investigating the Role of Possible...

Area of Science:

• Pharmacology
• Critical Care Medicine
• Nephrology

Background:

• Antimicrobial drug administration during therapeutic plasma exchange (TPE) presents complex clinical challenges.
• Limited experimental data necessitates cautious implementation of current recommendations in practice.
• Managing infections in critically ill patients undergoing TPE is complicated by drug-protein interactions and altered pharmacokinetics.

Purpose of the Study:

• To provide guidance on antimicrobial treatment strategies during TPE.
• To highlight the importance of understanding drug pharmacokinetics and TPE procedural aspects for personalized patient management.
• To inform clinical decision-making regarding antimicrobial dosing and timing in relation to TPE.

Main Methods:

• Review of existing literature on drug elimination during TPE.
• Analysis of pharmacokinetic properties influencing drug removal by TPE.
• Consideration of TPE procedural factors (frequency, duration) affecting drug concentrations.

Main Results:

• Drugs with low distribution volume, high protein binding, low endogenous clearance, and long half-lives are more susceptible to removal during TPE.
• TPE frequency and duration can significantly alter antimicrobial drug concentrations.
• Optimal timing involves completing TPE before or after antimicrobial administration, or delaying TPE to accommodate the drug's distributive phase.

Conclusions:

• Personalized antimicrobial treatment during TPE necessitates understanding drug pharmacokinetics and procedural variables.
• Strategic timing of antimicrobial administration and TPE is crucial for maintaining therapeutic drug levels.
• Drug concentration monitoring is advised for urgent TPE or when using agents with a narrow therapeutic index.