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Published on: May 11, 2015
Pulmonary hypertension in bronchopulmonary dysplasia
Sara K Berkelhamer1, Karen K Mestan, Robin H Steinhorn
1Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Insights
Pulmonary hypertension (PH) complicates neonatal respiratory diseases like bronchopulmonary dysplasia (BPD), increasing BPD
Area of Science:
- Neonatal Medicine
- Pediatric Cardiology
- Respiratory Medicine
Background:
- Pulmonary hypertension (PH) is a serious complication of bronchopulmonary dysplasia (BPD) in neonates.
- PH significantly worsens the clinical course, morbidity, and mortality associated with BPD.
- Up to 40% of infants with established BPD may develop PH.
Purpose of the Study:
- To review the current understanding of PH in neonates with BPD.
- To highlight risk factors, diagnostic methods, and emerging treatments for BPD-associated PH.
- To identify areas requiring further research in BPD-associated PH.
Main Methods:
- Literature review of recent studies on PH in BPD.
- Analysis of risk factors, including fetal growth restriction.
- Evaluation of diagnostic tools, primarily echocardiography.
- Assessment of current and emerging therapeutic strategies.
Main Results:
- Fetal growth restriction is identified as a significant predictor of PH in neonates.
- Echocardiography is the primary diagnostic tool for BPD-associated PH.
- The use of pulmonary vasodilators is increasing, but long-term data are limited.
Conclusions:
- PH is a critical concern in infants with BPD, necessitating further investigation.
- Standardized screening and diagnostic techniques for BPD-associated PH are under development.
- More research is needed on the long-term safety and efficacy of pulmonary vasodilator therapies in this population.
Abstract:
Pulmonary hypertension (PH) is a common complication of neonatal respiratory diseases, including bronchopulmonary dysplasia (BPD), and recent studies have increased awareness that PH worsens the clinical course, morbidity and mortality of BPD. Recent evidence indicates that up to 18% of all extremely low-birth-weight infants will develop some degree of PH during their hospitalization, and the incidence rises to 25-40% of the infants with established BPD. Risk factors are not yet well understood, but new evidence shows that fetal growth restriction is a significant predictor of PH. Echocardiography remains the primary method for evaluation of BPD-associated PH, and the development of standardized screening timelines and techniques for identification of infants with BPD-associated PH remains an important ongoing topic of investigation. The use of pulmonary vasodilator medications, such as nitric oxide, sildenafil, and others, in the BPD population is steadily growing, but additional studies are needed regarding their long-term safety and efficacy.
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