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Updated: Jun 26, 2026

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
Published on: May 11, 2015
Clinical practice: pulmonary hypertension in children
1Pediatric cardiology UZ Gent, De Pintelaan 185, 9000 Gent, Belgium. daniel.dewolf@ugent.be
Pediatric pulmonary hypertension, often idiopathic or linked to congenital heart defects, shows improved outcomes with targeted vasodilator therapies. These treatments enhance function and hemodynamics in children with pulmonary arterial hypertension.
Area of Science:
- Pediatric Cardiology
- Pulmonology
- Pediatric Critical Care Medicine
Background:
- Pulmonary arterial hypertension (PAH) is a rare childhood disorder, with idiopathic PAH and pulmonary hypertension due to congenital left-to-right shunts comprising approximately 90% of cases.
- Idiopathic PAH presents non-specifically in children, varying with age.
Purpose of the Study:
- To review the clinical presentation, diagnostic approaches, and treatment strategies for pediatric pulmonary hypertension.
- To compare outcomes for idiopathic PAH and PAH associated with congenital heart disease.
Main Methods:
- Review of clinical presentations and treatment responses.
- Analysis of patient outcomes based on vasoreactivity testing and therapeutic interventions.
- Comparison of treatment efficacy for different types of pediatric pulmonary hypertension.
Main Results:
- Pulmonary vasoreactivity testing differentiates responders (treated with calcium channel blockers) from non-responders.
- Selective pulmonary vasodilators (prostacyclin, endothelin receptor antagonists, PDE-5 inhibitors) improve hemodynamics, functional class, and exercise tolerance in non-responders.
- Patients with congenital heart disease and Eisenmenger's syndrome have stable courses with survival up to 40-60 years, benefiting from similar vasodilator therapies.
Conclusions:
- Pulmonary hypertension in children is predominantly idiopathic or associated with congenital heart disease.
- New selective pulmonary vasodilators significantly improve hemodynamic and functional parameters in pediatric patients.
- Treatment strategies offer comparable improvements in both idiopathic PAH and PAH associated with congenital heart disease.
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