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Association between anemia and bronchopulmonary dysplasia in preterm infants
Jun Duan1, Xiangyong Kong1, Qiuping Li1
1Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, China.
Insights
Early anemia in preterm infants increases the risk of developing bronchopulmonary dysplasia (BPD). Preventing and treating anemia, along with reducing blood transfusions, may lower BPD incidence in these vulnerable infants.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Hematology
Background:
- Anemia is a frequent complication in preterm infants.
- Reduced oxygen-carrying capacity from anemia can lead to organ dysfunction.
- Bronchopulmonary dysplasia (BPD) is a significant respiratory morbidity in premature neonates.
Purpose of the Study:
- To investigate the association between anemia and the development of bronchopulmonary dysplasia (BPD) in preterm infants.
- To identify risk factors contributing to BPD in this population.
Main Methods:
- A cohort of 243 preterm infants (gestational age < 32 weeks) was studied.
- Maternal and infant data were collected and analyzed.
- Multivariate logistic regression was used to determine the association between early anemia and BPD, controlling for confounding factors.
Main Results:
- The incidence of anemia was significantly higher in preterm infants who developed BPD compared to those who did not (p < 0.001).
- Mean hematocrit levels were lower in BPD patients at multiple time points (1, 7, 14, and 21 days).
- Early anemia was independently associated with an increased risk of BPD, and the number of transfusions was also a significant risk factor (p = 0.001).
Conclusions:
- Early anemia is a significant risk factor for the development of bronchopulmonary dysplasia in preterm infants.
- Interventions aimed at preventing and treating anemia in preterm neonates are crucial.
- Minimizing the number of blood transfusions may help reduce the incidence of BPD.
Abstract:
Anemia is commonly seen in preterm infants. It may reduce the capacity of hemoglobin to transport oxygen throughout the body and may result in tissue and organ dysfunction. This study aimed to investigate the effect of anemia on the development of bronchopulmonary dysplasia (BPD) in preterm infants. 243 infants who were admitted to BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital with gestational age (GA) less than 32 weeks from February, 2014 to February, 2015 were included in the study. Maternal and infant data were recorded. Multivarariate logistic regression analysis was performed to determine the association between anemia and BPD. Of 243 preterm infants, the incidence of anemia was higher in BPD patients than non-BPD patients (p < 0.001). Mean Hct in BPD patients was lower than non-BPD patients at different time points in 1d, 7d, 14d, and 21d. Controlling for other confounding factors, early anemia was associated with an increased risk of BPD. Number of transfusions is also a significant risk factor for BPD (p = 0.001). Therefore, prevention and treatment of early anemia is necessary and reducing number of transfusions may reduce the incidence of BPD in preterm infants.
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