Analytical and Non-Analytical Variation May Lead to Inappropriate Antimicrobial Dosing in Neonates: An In Silico Study.

BACKGROUND: Therapeutic drug monitoring (TDM) of aminoglycosides and vancomycin is used to prevent oto- and nephrotoxicity in neonates. Analytical and nonanalytical factors potentially influence dosing recommendations. This study aimed to determine the impact of analytical variation (imprecision and...

Descripción completa

Detalles Bibliográficos
Publicado en:Clinical Chemistry Vol. 69; no. 6; pp. 637 - 649
Autores principales: Nguyen, Thi A., Kirubakaran, Ranita, Schultz, Hayley B., Wong, Sherilyn, Reuter, Stephanie E., McMullan, Brendan, Bolisetty, Srinivas, Campbell, Craig, Horvath, Andrea R., Stocker, Sophie L.
Formato: Journal Article
Publicado: Oxford University Press / USA Jun2023
Acceso en línea:Ver este registro en EBSCOhost
fields @attributes:
  recordID: 1
pdfLink:
plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=164125333&site=ehost-live
header:
  @attributes:
    shortDbName: ccm
    uiTerm: 164125333
    longDbName: CINAHL Complete
    uiTag: AN
  controlInfo:
    bkinfo:
    dissinfo:
    jinfo:
      jid:
        00099147
        10CS
      jtl: Clinical Chemistry
      issn: 00099147
      maglogo: N
    pubinfo:
      dt: Jun2023
      vid: 69
      iid: 6
      pid: 622
      pub: Oxford University Press / USA
    artinfo:
      ui:
        164125333
        10.1093/clinchem/hvad036
        164125333
      ppf: 637
      ppct: 12
      formats:
        fmt:
          @attributes:
            type: P
      tig:
        atl: Analytical and Non-Analytical Variation May Lead to Inappropriate Antimicrobial Dosing in Neonates: An In Silico Study.
      aug:
        au:
          Nguyen, Thi A.
          Kirubakaran, Ranita
          Schultz, Hayley B.
          Wong, Sherilyn
          Reuter, Stephanie E.
          McMullan, Brendan
          Bolisetty, Srinivas
          Campbell, Craig
          Horvath, Andrea R.
          Stocker, Sophie L.
        affil: School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
      sug:
      ab: BACKGROUND: Therapeutic drug monitoring (TDM) of aminoglycosides and vancomycin is used to prevent oto- and nephrotoxicity in neonates. Analytical and nonanalytical factors potentially influence dosing recommendations. This study aimed to determine the impact of analytical variation (imprecision and bias) and nonanalytical factors (accuracy of drug administration time, use of non-trough concentrations, biological variation, and dosing errors) on neonatal antimicrobial dosing recommendations. METHODS: Published population pharmacokinetic models and the Australasian Neonatal Medicines Formulary were used to simulate antimicrobial concentration-time profiles in a virtual neonate population. Laboratory quality assurance data were used to quantify analytical variation in antimicrobial measurement methods used in clinical practice. Guideline-informed dosing recommendations based on drug concentrations were applied to compare the impact of analytical variation and nonanalytical factors on antimicrobial dosing. RESULTS: Analytical variation caused differences in subsequent guideline-informed dosing recommendations in 9.3-12.1% (amikacin), 16.2-19.0% (tobramycin), 12.2-45.8% (gentamicin), and 9.6-19.5% (vancomycin) of neonates. For vancomycin, inaccuracies in drug administration time (45.6%), use of non-trough concentrations (44.7%), within-subject biological variation (38.2%), and dosing errors (27.5%) were predicted to result in more dosing discrepancies than analytical variation (12.5%). Using current analytical performance specifications, tolerated dosing discrepancies would be up to 14.8% (aminoglycosides) and 23.7% (vancomycin). CONCLUSIONS: Although analytical variation can influence neonatal antimicrobial dosing recommendations, nonanalytical factors are more influential. These result in substantial variation in subsequent dosing of antimicrobials, risking inadvertent under- or overexposure. Harmonization of measurement methods and improved patient management systems may reduce the impact of analytical and nonanalytical factors on neonatal antimicrobial dosing.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
    refInfo:
    holdings:
      @attributes:
        islocal: N