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VOLUME 1 , ISSUE 1 ( January-March, 2022 ) > List of Articles

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Current Understanding of Transfusion-associated Necrotizing Enterocolitis: Review of Clinical and Experimental Studies and a Call for More Definitive Evidence

Minesh Khashu, Christof Dame, Pascal M Lavoie, Isabelle G De Plaen, Parvesh M Garg, Venkatesh Sampath, Atul Malhotra, Michael D Caplan, Pankaj B Agrawal, Giuseppe Buonocore, Akhil Maheshwari

Keywords : Anemia, Necrotizing enterocolitis, Preterm infants, ta-NEC, TANEC, TRAGI, Transfusion

Citation Information : Khashu M, Dame C, Lavoie PM, De Plaen IG, Garg PM, Sampath V, Malhotra A, Caplan MD, Agrawal PB, Buonocore G, Maheshwari A. Current Understanding of Transfusion-associated Necrotizing Enterocolitis: Review of Clinical and Experimental Studies and a Call for More Definitive Evidence. 2022; 1 (1):201-208.

DOI: 10.5005/jp-journals-11002-0005

License: CC BY-NC 4.0

Published Online: 31-03-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Introduction: The association between red blood cell (RBC) transfusions and necrotizing enterocolitis (NEC), so-called transfusion-associated NEC (ta-NEC), was first described in 1987. However, further work is needed to confirm a causal relationship, elucidate underlying mechanisms, and develop possible strategies for prevention. We performed an extensive literature search in the databases PubMed, EMBASE, and Scopus. Areas covered: Although multiple retrospective human studies have strongly suggested an association between blood transfusions and subsequent occurrence of NEC, meta-analyses of randomized controlled trials (RCTs) testing RBC transfusion thresholds or the use of recombinant erythropoiesis-stimulating growth factors did not confirm an association of anemia with ta-NEC. These conflicting data necessitated the development of an animal model to elucidate mechanisms and causal factors. Data from this recent mouse model of ta-NEC highlighted the importance of sequential exposure to severe anemia followed by transfusion for development of ta-NEC. Expert opinion: This review summarizes current human and experimental data, highlights open questions, and suggests avenues for further research aimed at preventing ta-NEC in preterm infants. Further studies are required to delineate whether there is a tipping point, in terms of the level and duration of anemia, and to develop an effective strategy for blood management and the quality of RBC transfusions.


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