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Hematologic Dysfunction Criteria in Critically Ill Children: The PODIUM Consensus Conference.

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Defining hematologic dysfunction in critically ill children is crucial. This study proposes evidence-based criteria for cytopenias, including platelet, leukocyte, and hemoglobin levels, to improve patient outcomes.

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Area of Science:

  • Pediatric Critical Care Medicine
  • Hematology
  • Evidence-Based Medicine

Background:

  • Lack of consensus on organ dysfunction criteria limits research in critically ill children.
  • Hematologic dysfunction is a known risk factor for poor outcomes in this population.
  • Specific thresholds for hematologic dysfunction and their association with mortality are poorly defined.

Purpose of the Study:

  • To derive evidence-informed, consensus-based criteria for hematologic dysfunction in critically ill children.
  • To establish standardized screening criteria for hematologic dysfunction.
  • To identify thresholds for cytopenias associated with patient outcomes.

Main Methods:

  • Systematic review of PubMed and Embase databases (January 1992 to January 2020).
  • Inclusion of studies evaluating assessment/scoring tools for hematologic dysfunction and patient outcomes.
  • Exclusion of adult studies, premature infants, animal studies, reviews, and non-English studies.

Main Results:

  • Twenty-nine studies were included in the systematic review.
  • Proposed criteria for hematologic dysfunction include specific thresholds for thrombocytopenia (platelet count), leukopenia (leukocyte count), and anemia (hemoglobin concentration).
  • Most studies focused on pre-specified cytopenia thresholds, with limited research on etiology, progression, or cellular function.

Conclusions:

  • Hematologic dysfunction, defined by cytopenia, is a significant risk factor for adverse outcomes in critically ill children.
  • The derived criteria provide a foundation for consistent identification of hematologic dysfunction.
  • Further research is needed to explore the etiology, progression, and cellular function aspects of cytopenias in this population.