Related Experiment Video
Updated: Apr 29, 2026

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
Published on: May 11, 2015
Sildenafil for pulmonary hypertension complicating bronchopulmonary dysplasia
Varsha Bhatt-Mehta1, Steven M Donn
1College of Pharmacy, University of Michigan Health System, Ann Arbor, MI 48109-5254, USA.
Insights
Sildenafil is used for infant pulmonary hypertension, but evidence for its safety and effectiveness is lacking. The US FDA advises against its use in this population.
Area of Science:
- Pediatric Pulmonology
- Pharmacology
- Neonatology
Background:
- Sildenafil, a phosphodiesterase-5 inhibitor, is frequently prescribed for infants with bronchopulmonary dysplasia and pulmonary hypertension.
- This usage persists despite a significant lack of robust clinical evidence supporting its safety or efficacy in this vulnerable patient group.
Discussion:
- The clinical application of sildenafil in neonates with bronchopulmonary dysplasia-associated pulmonary hypertension is controversial.
- Current treatment guidelines and regulatory advisories, including from the US Food and Drug Administration (FDA), recommend against its use due to insufficient data.
Key Insights:
- There is a critical need to evaluate the safety and efficacy of sildenafil in infants with bronchopulmonary dysplasia.
- Clinical practice patterns for sildenafil in this indication are not aligned with available evidence or regulatory recommendations.
Outlook:
- Future research should focus on well-designed clinical trials to ascertain the true benefit-risk profile of sildenafil in pediatric pulmonary hypertension.
- Clarifying the role of phosphodiesterase-5 inhibitors in neonatal cardiopulmonary disorders is essential for evidence-based clinical decision-making.
Abstract:
Sildenafil, a phospohodiesterase-5 inhibitor, is widely used to treat pulmonary hypertension in infants with bronchopulmonary dysplasia despite a lack of evidence to support either safety or efficacy and US FDA advice against its use.
Related Concept Videos
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
COPD: Management Using Bronchodilators and Corticosteroids
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...

