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Hyperbilirubinemia in premature infants: relevance to blood transfusion
1Department of Neonatology, Hadassah University Hospital, Mt. Scopus, Jerusalem, Israel.
Insights
Transfusing adult red blood cells to premature infants can increase bilirubin levels, potentially causing jaundice. This rise in bilirubin should be anticipated in very low birth weight infants during the neonatal period.
Area of Science:
- Neonatal Medicine
- Pediatric Hematology
- Clinical Biochemistry
Background:
- Transfused adult red blood cells may undergo increased hemolysis in premature infants.
- This hemolysis can lead to a significant bilirubin load on the immature neonatal liver.
- Consequent hyperbilirubinemia is a concern in the early days of life for premature neonates.
Purpose of the Study:
- To evaluate the association between packed red blood cell transfusion and serum bilirubin levels in premature infants.
- To assess the impact of transfusion on bilirubin load in the neonatal period.
- To identify factors influencing bilirubin level changes post-transfusion.
Main Methods:
- Analysis involved 35 premature infants with birth weight < 1,250 g.
- Data collected during the first 10 days of life.
- Analysis of variance method used to evaluate associations.
Main Results:
- A significant mean increase of 24.3 mumol/l in bilirubin level was observed post-transfusion.
- Birth weight showed a significant negative effect on bilirubin levels.
- Prolonged mechanical ventilation (> 2 days) had a significant positive effect, though magnitude was small.
Conclusions:
- A rise in bilirubin level following blood transfusion in very low birth weight infants is expected.
- Neonatal hyperbilirubinemia risk increases post-transfusion in this vulnerable population.
- Anticipatory management of bilirubin levels is crucial for premature infants receiving transfusions.
Abstract:
The rate of hemolysis of transfused adult red blood cells in the premature circulation may be higher than in the native circulation and produce a significant bilirubin load on the immature liver during the first days of life with consequent hyperbilirubinemia. The association between the transfusion of packed red blood cells and consequent change of serum bilirubin level was evaluated in 35 premature infants with birth weight of < 1,250 g during the first 10 days of life, using the analysis of variance method. There was a significant increase of bilirubin level with a mean of 24.3 mumol/l following packed red blood cells transfusion. Birth weight had a significant negative effect and mechanical ventilation for > 2 days had a significant positive effect on bilirubin levels; however, the changes were of small magnitude. The results of our study indicate that a rise of bilirubin level following blood transfusion to very low birth weight infants during the early neonatal period should be anticipated.