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Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

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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,...
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Drug Dosing: Infants and Children01:29

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Validated age-specific reference values for CSF total protein levels in children.

V Kahlmann1, J Roodbol1, N van Leeuwen2

  • 1Department of Neurology, Erasmus MC - Sophia Children's Hospital, University Medical Center Rotterdam, The Netherlands; Department of Paediatric Neurology, Erasmus MC - Sophia Children's Hospital, University Medical Center Rotterdam, The Netherlands.

European Journal of Paediatric Neurology : EJPN : Official Journal of the European Paediatric Neurology Society
|May 3, 2017
PubMed
Summary
This summary is machine-generated.

New age-specific reference values for cerebrospinal fluid (CSF) total protein in children improve diagnosis of Guillain-Barré syndrome (GBS) and acute disseminated encephalomyelitis (ADEM). These findings offer more sensitive diagnostic tools for pediatric neurological conditions.

Keywords:
Acute disseminated encephalomyelitisGuillain-Barré syndromeMultiple sclerosisPediatric and cerebrospinal fluid

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Area of Science:

  • Pediatric Neurology
  • Clinical Biochemistry

Background:

  • Cerebrospinal fluid (CSF) total protein levels are crucial biomarkers in pediatric neurological disorders.
  • Existing reference values for CSF total protein in children lack age specificity, potentially impacting diagnostic accuracy.

Purpose of the Study:

  • To establish age-specific reference values for CSF total protein in pediatric populations.
  • To validate these new reference values in children diagnosed with Guillain-Barré syndrome (GBS), acute disseminated encephalomyelitis (ADEM), and multiple sclerosis (MS).

Main Methods:

  • Analysis of 6145 diagnostic CSF samples from 3623 children (<18 years) to define reference ranges.
  • Confirmation of reference values using a subgroup of 378 children with conditions unrelated to elevated CSF protein.
  • Validation of reference values in pediatric cohorts diagnosed with GBS, ADEM, and MS.

Main Results:

  • Established age-specific upper limits of normal for CSF total protein: 0.25 g/L (6 months-6 years), 0.28 g/L (6-12 years), and 0.34 g/L (12-18 years).
  • CSF protein levels in infants (<6 months) were highly variable (median 0.47 g/L).
  • The new values identified elevated CSF protein in 85% of GBS, 66% of ADEM, and 23% of MS cases, showing higher sensitivity.

Conclusions:

  • Accurate, age-specific reference values for pediatric CSF total protein have been determined.
  • The newly defined reference values demonstrate increased sensitivity for diagnosing GBS and ADEM in children compared to existing standards.