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Updated: May 29, 2026

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
Published on: May 11, 2015
Advances in the management of pediatric pulmonary hypertension
Peter Oishi1, Sanjeev A Datar, Jeffrey R Fineman
1Division of Pediatric Critical Care Medicine, University of California, San Francisco, California 94143-1346, USA.
Insights
Pediatric pulmonary hypertension is a rare, serious condition with limited understanding and treatments. Research is advancing, focusing on endothelial pathways to improve outcomes for children with this disease.
Area of Science:
- Pediatric Cardiology
- Neonatal Medicine
- Pulmonary Vascular Disease
Background:
- Pulmonary hypertension (PH) in neonates, infants, and children is a rare condition with high morbidity and mortality.
- Understanding of its pathophysiology is limited, with a specific lack of research in pediatric populations.
- Current therapeutic options for pediatric PH are restricted.
Purpose of the Study:
- To review the epidemiology, pathophysiology, current treatments, and emerging therapies for neonatal and pediatric pulmonary hypertension.
- To highlight the knowledge gaps in understanding the mechanisms controlling pediatric PH.
- To discuss the limitations of current therapeutic strategies.
Main Methods:
- Review of existing literature on pediatric pulmonary hypertension.
- Analysis of pathophysiologic mechanisms, including endothelial-derived factors.
- Examination of current and novel therapeutic approaches.
Main Results:
- Advanced PH involves progressive pulmonary vascular changes leading to right-ventricular failure and death.
- Management strategies focus on vasoconstriction, right-ventricular support, and underlying disease treatment.
- Current therapies target nitric oxide/cGMP, prostacyclin, and endothelin-1 pathways.
Conclusions:
- Reversing advanced structural changes in pediatric PH remains a significant challenge.
- Further research is crucial to elucidate pathophysiologic mechanisms and develop effective treatments for pediatric PH.
- Emerging therapies offer potential for improved management of this rare disease.
Abstract:
Pulmonary hypertension is a rare disease in neonates, infants, and children, and is associated with substantial morbidity and mortality. An adequate understanding of the controlling pathophysiologic mechanisms is lacking. Moreover, a minority of research is focused specifically on neonatal and pediatric populations. Although therapeutic options have increased over the past several decades, they remain limited. In advanced pulmonary hypertension, progressive pulmonary vascular functional and structural changes ultimately cause increased pulmonary vascular impedance, right-ventricular failure, and death. Management includes the prevention and/or treatment of active pulmonary vasoconstriction, the support of right-ventricle function, treatment of the underlying disease (if possible), and the promotion of regressive remodeling of structural pulmonary vascular changes. Most currently available therapies augment or inhibit factors, or mediators of their downstream signaling cascades, that originate in the pulmonary vascular endothelium. These pathways include nitric-oxide/cyclic guanosine monophosphate (cGMP), prostacyclin, and endothelin-1. The ability to reverse advanced structural changes remains an as yet unattained goal. This paper reviews the epidemiology, pathophysiology, current treatments, and emerging therapies related to neonatal and pediatric pulmonary hypertension.
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