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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Impact of the definition of bronchopulmonary dysplasia on neurodevelopmental outcomes
Yea-Seul Han1, Sung-Ha Kim1, Tae-Jung Sung2
1Department of Pediatrics, Hallym University Medical Center, Kangnam Sacred Heart Hospital, Seoul, Korea.
Insights
The Neonatal Research Network (NRN) criteria for bronchopulmonary dysplasia (BPD) better predict neurodevelopmental impairment in preterm infants than NIH criteria. Grade 3 BPD under NRN criteria shows high accuracy in identifying infants at risk for poor outcomes.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Developmental Pediatrics
Background:
- Bronchopulmonary dysplasia (BPD) significantly impacts neonatal care, particularly for low-birth-weight infants.
- Understanding long-term pulmonary and neurologic outcomes is crucial for managing BPD.
- Existing diagnostic criteria for BPD, such as NIH (2001) and NRN (2019), may vary in their predictive power for long-term sequelae.
Purpose of the Study:
- To compare the predictive accuracy of the NIH and NRN criteria for diagnosing bronchopulmonary dysplasia (BPD).
- To determine which BPD definition best predicts long-term pulmonary and neurodevelopmental outcomes in preterm infants.
- To evaluate the association between BPD severity and neurodevelopmental impairment (NDI).
Main Methods:
- Utilized Korean nationwide data from preterm infants born between 24 and 32 weeks gestation (2013-2015).
- Analyzed long-term outcomes, including respiratory disorder readmissions and neurodevelopmental impairment at 18-24 months.
- Compared the performance of NIH and NRN diagnostic criteria, including severity grading, in predicting these outcomes.
Main Results:
- The Neonatal Research Network (NRN) criteria demonstrated a stronger association with poor 2-year developmental outcomes compared to NIH criteria.
- Grade 3 BPD by NRN criteria showed high specificity (96%) and accuracy (83%) for predicting respiratory disorder readmissions.
- For predicting neurodevelopmental impairment (NDI), NRN grade 3 BPD exhibited superior specificity (98%) and accuracy (78%), while NIH severe BPD had higher sensitivity (60%).
Conclusions:
- The NRN BPD definition appears more effective in identifying preterm infants at high risk for neurodevelopmental impairment.
- The NRN criteria may offer a more robust tool for predicting adverse long-term outcomes in bronchopulmonary dysplasia.
- This study supports the use of NRN criteria for better risk stratification and management of BPD in neonates.
Abstract:
Understanding the short and long-term pulmonary and neurologic outcomes of neonates with bronchopulmonary dysplasia (BPD) is important in neonatal care for low-birth-weight infants. Different criteria for BPD may have different associations with long-term outcomes. Currently, two criteria for diagnosing BPD have been proposed by the NIH (2001) and NRN (2019) for preterm infants at a postmenstrual age (PMA) of 36 weeks. We investigated which BPD definition best predicts long-term outcomes. Korean nationwide data for preterm infants born between 24+0 and < 32+0 weeks gestation from January 2013 to December 2015 were collected. For long-term outcomes, severity based on the NRN criteria was significantly related to neurodevelopmental impairment (NDI) in a univariate analysis after other risk factors were controlled. For the admission rate for respiratory disorder, grade 3 BPD of the NRN criteria had the highest specificity (96%), negative predictive value (86%), and accuracy (83%). For predicting NDI at the 18-24 month follow-up, grade 3 BPD of the NRN criteria had the best specificity (98%), positive (64%) and negative (79%) predictive values, and accuracy (78%) while NIH severe BPD had the highest sensitivity (60%). The NRN definition was more strongly associated with poor 2-year developmental outcomes. BPD diagnosed by NRN definitions might better identify infants at high risk for NDI.
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