Transfusion in Critically ill Children: Indications, Risks, and Challenges

Parker RI. Transfusion in critically ill children: indications, risks, and challenges. Crit Care Med. 2014 Mar;42(3):675-90. doi: 10.1097/CCM.0000000000000176. Review. PubMed PMID: 24534955.

Objective
To provide a concise review of transfusion-related issues and practices in the pediatric patient population, with a focus on those issues of particular importance to the care of critically ill children.

Data Source
Electronic search of the PubMed database using the search terms “pediatric transfusion,” “transfusion practices,” “transfusion risks,” “packed red blood cell transfusion,” “white blood cell transfusion,” “platelet transfusion,” “plasma transfusion,” and “massive transfusion” either singly or in combination.

Study Selection and Data Extraction
All identified articles published since 2000 were manually reviewed for study design, content, and support for indicated conclusions, and the bibliographies were scrutinized for pertinent references not identified in the PubMed search. Selected studies from this group were then manually reviewed for possible inclusion in this review.

Data Synthesis
Well-designed studies have demonstrated the benefit of “restrictive” transfusion practices across the entire age spectrum of pediatric patients across a wide spectrum of pediatric illness. However, clinician implementation of the more restrictive transfusion practices supported by these studies is variable. Additionally, the utilization of both platelet and plasma transfusions in either a “prophylactic” or “therapeutic” setting appears to be greater than that supported by published data.

Conclusions
The preponderance of prospective, randomized trials and retrospective analyses support the use of a restrictive packed RBC transfusion policy in most clinical conditions in children. Neonatal transfusions guidelines rely largely on “expert opinion” rather than experimental data. Current transfusion practices for both platelets and coagulant products (e.g., fresh-frozen plasma and recombinant-activated factor VII) are poorly aligned with recommended transfusion guidelines. As with adults, current transfusion practices in children often do not reflect implementation of our current knowledge on the need for transfusion. Greater efforts to implement current evidence-based transfusion practices are needed.

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