• C S Crabtree, M Pakvasa, P G Radmacher, and D H Adamkin.
• Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA.
• J Neonatal Perinatal Med. 2018 Jan 1; 11 (4): 365-370.

ObjectiveThe study objective was to explore the relationship between necrotizing enterocolitis (NEC) and packed red blood cell (pRBC) transfusion in very low birth weight (VLBW) neonates (<1500 g).Study DesignA six-year retrospective chart review of VLBW infants with NEC (Bell's Stage > II) and a pRBC transfusion within 48 hours of diagnosis. Prenatal data, postnatal course, transfusion history, and NEC outcomes were reviewed. The transfusion associated necrotizing enterocolitis (TANEC) cases were matched with controls (1:2) who were transfused but did not develop NEC as to proximity of birth date, gestational age, and receipt of transfusion.ResultsOf 1139 VLBW admissions, there were 73 cases of NEC and 30 cases of TANEC (annual NEC rate 6.4%). TANEC cases were matched with 60 controls who were transfused but never developed NEC. Neonatal profiles were similar between all 3 groups, except for a higher proportion of infants <10th percentile in the non-TANEC group. Days of antibiotics and frequency of patient ductus arteriosus (PDA) ligation were lower in controls compared to NEC cases. Lower feeding rate at diagnosis of NEC/match were more common in control infants compared to TANEC infants. However, feeding abstinence rates were similar between the two groups. The number of transfusions prior to diagnosis/match was similar in all groups. There was no significant difference in pre-transfusion hematocrit values between the groups.ConclusionTANEC was common among NEC cases. PDA ligation was similar among TANEC and non-TANEC but lower in controls. Similar pre-transfusion hematocrits were found among TANEC and controls. Feeding abstinence rates were also similar between TANEC and controls.

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