Therapeutic drug monitoring of amikacin in Chinese premature infant: a population pharmacokinetic analysis and dosage optimization
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.This study characterizes amikacin pharmacokinetics in Chinese premature infants, finding weight, postmenstrual age, and renal function significantly impact drug levels. Recommended dosage regimens are proposed to optimize amikacin therapy for this population.
Area Of Science
- Pharmacology
- Neonatology
- Clinical Pharmacy
Background
- Aminoglycoside pharmacokinetics (PK) are known to change in premature infants.
- The PK profile of amikacin in Chinese premature infants remains uncharacterized.
- Understanding amikacin PK is crucial for optimizing treatment and minimizing toxicity in neonates.
Purpose Of The Study
- To assess the safety of amikacin in Chinese premature infants.
- To describe the population pharmacokinetic properties of amikacin in this specific patient group.
- To propose optimized dosage regimens for amikacin therapy.
Main Methods
- A two-center, retrospective pharmacokinetic study design was employed.
- Population pharmacokinetic modeling was performed using Phoenix NLME software.
- Monte Carlo simulations were utilized to identify optimal amikacin dosage regimens.
Main Results
- Analysis included 54 amikacin concentrations from 23 Chinese premature infants.
- A one-compartment model with first-order elimination best described amikacin PK.
- Weight, postmenstrual age, and renal function significantly influenced amikacin clearance and volume of distribution; proposed regimens include 13 mg/kg q24h, 12 mg/kg q36h, and q48h based on serum creatinine levels.
Conclusions
- Weight, postmenstrual age, and renal function are key covariates affecting amikacin PK in Chinese premature infants.
- The study suggests optimized dosage regimens that may improve amikacin efficacy and safety.
- These findings offer valuable guidance for amikacin therapy in this vulnerable population.
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
Related Concept Videos
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Gentamicin, an aminoglycoside antibiotic, is commonly administered via intermittent intravenous infusion to treat severe infections. An intermittent one-hour infusion of gentamicin, administered at eight-hour intervals, allows for precise control of plasma drug concentrations, minimizing toxicity while ensuring therapeutic efficacy. Pharmacokinetic principles govern the dynamics of plasma concentrations and can be mathematically described using specific equations.The plasma drug concentration...
Aminoglycosides are a class of antibiotics used to treat various bacterial infections. Clinicians must determine the elimination rate constant (k) and volume of distribution (VD) to optimize therapeutic efficacy and minimize toxicity. The k value represents the rate at which the drug is removed from the body, and the VD reflects the degree to which the drug distributes into body tissues. Accurately estimating these parameters allows healthcare professionals to tailor drug dosing to individual...
Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight,...
Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...