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Dynamic reference intervals for coagulation parameters from infancy to adolescence.

Christina Weidhofer1, Elias Meyer2, Robin Ristl2

  • 1Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.

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|April 8, 2018
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Summary
This summary is machine-generated.

This study establishes continuous, age- and sex-specific reference intervals for key pediatric coagulation parameters. This provides crucial data for diagnosing hemostasis disorders in children.

Keywords:
CoagulationContinuous reference intervalsHemostasisIndirectPediatrics

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Area of Science:

  • Pediatric Hematology
  • Clinical Biochemistry
  • Laboratory Medicine

Background:

  • Pediatric reference intervals for coagulation parameters are scarce due to practical, ethical, and cost challenges.
  • Existing age-group intervals fail to capture dynamic age and sex-specific coagulation values in children.
  • There is a significant need for reliable, continuous reference intervals in pediatric hemostasis.

Purpose of the Study:

  • To establish continuous, age- and sex-dependent reference intervals for key coagulation parameters in children.
  • To address the gap in evidence-based pediatric reference ranges for hemostasis.
  • To provide a valuable resource for accurate diagnosis and monitoring of coagulation disorders in pediatric patients.

Main Methods:

  • Utilized an innovative indirect method to generate continuous reference intervals.
  • Analyzed retrospective laboratory data from pediatric patients (2005-2015) across two Austrian hospitals.
  • Included a large dataset of 195,360 measurements for five common coagulation parameters: aPTT, PT, TT, fibrinogen (FIB), and antithrombin (AT).

Main Results:

  • Successfully calculated continuous reference intervals for five common coagulation parameters.
  • The intervals are dependent on both age and gender, reflecting pediatric physiology.
  • This multicenter study provides data for a large pediatric cohort.

Conclusions:

  • This is the first multicenter study to determine continuous pediatric coagulation reference intervals using a large retrospective dataset.
  • The findings offer a significant advancement in establishing evidence-based hemostasis reference ranges for children.
  • The generated intervals will aid in more precise clinical interpretation of coagulation tests in pediatric populations.