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The relationship of red blood cell transfusion to intestinal mucosal injury in premature infants.
Journal of Pediatric Surgery 2017 July
OBJECTIVE: To determine the incidence of intestinal mucosal injury before and after transfusions in premature infants.
STUDY DESIGN: Urine was collected throughout the hospital stay of 62 premature infants and specimens obtained within 24h before and after transfusion were assayed for intestinal fatty acid binding protein (iFABP). A urinary iFABP:creatinine ratio (iFABPu :Cru ) of 2.0pg/nmol was considered elevated.
RESULT: Forty-nine infants were transfused. iFABPu:Cru was elevated following 71 (75.6%) of 94 transfusions for which urine was available. In 51 (71.8%) of these, iFABPu:Cru was also elevated prior to the transfusion. Among four cases of transfusion-associated NEC, iFABPu was elevated following every sentinel transfusion and prior to three of them.
CONCLUSION: Subclinical intestinal mucosal injury is frequent following blood transfusions in premature infants and, when present, usually precedes transfusion. This suggests that transfusion may not be a primary mediator of intestinal injury so much as anemia and its associated conditions.
LEVEL OF EVIDENCE: Prognosis study/level 3.
STUDY DESIGN: Urine was collected throughout the hospital stay of 62 premature infants and specimens obtained within 24h before and after transfusion were assayed for intestinal fatty acid binding protein (iFABP). A urinary iFABP:creatinine ratio (iFABPu :Cru ) of 2.0pg/nmol was considered elevated.
RESULT: Forty-nine infants were transfused. iFABPu:Cru was elevated following 71 (75.6%) of 94 transfusions for which urine was available. In 51 (71.8%) of these, iFABPu:Cru was also elevated prior to the transfusion. Among four cases of transfusion-associated NEC, iFABPu was elevated following every sentinel transfusion and prior to three of them.
CONCLUSION: Subclinical intestinal mucosal injury is frequent following blood transfusions in premature infants and, when present, usually precedes transfusion. This suggests that transfusion may not be a primary mediator of intestinal injury so much as anemia and its associated conditions.
LEVEL OF EVIDENCE: Prognosis study/level 3.
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