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Published on: May 11, 2015
Paediatric pulmonary hypertension and sildenafil: current practice and controversies
1University of Bristol, Bristol, UK.
Insights
Sildenafil is a key treatment for pediatric pulmonary hypertension, improving quality of life and survival. Despite some controversies and recent setbacks, its use in managing pediatric pulmonary hypertension remains significant.
Area of Science:
- Pediatric Cardiology
- Pharmacology
- Neonatology
Background:
- Pediatric pulmonary arterial hypertension (PAH) management has shifted towards disease-modifying strategies.
- Sildenafil, a phosphodiesterase-V inhibitor, is central to this paradigm shift.
- Its application extends to related conditions like persistent pulmonary hypertension of the newborn and bronchopulmonary dysplasia.
Purpose of the Study:
- To review the evolving role of sildenafil in pediatric pulmonary hypertension.
- To address controversies and challenges associated with its use in younger patients.
- To examine the impact of recent data on long-term outcomes and regulatory approvals.
Main Methods:
- Literature review of studies on sildenafil in pediatric pulmonary hypertension.
- Analysis of clinical trial data and post-marketing surveillance.
- Discussion of regulatory changes and their implications.
Main Results:
- Sildenafil has demonstrated efficacy in improving quality of life and survival in pediatric PAH.
- Alternative formulations and expanded indications have emerged.
- Concerns regarding long-term mortality and regulatory actions have introduced complexities.
Conclusions:
- Sildenafil remains a cornerstone in the contemporary management of pediatric pulmonary hypertension.
- Its role is expected to persist across various clinical contexts.
- Ongoing research and careful consideration of risks are essential for its continued use.
Abstract:
In recent times, paediatric pulmonary arterial hypertension management has been transformed to focus on disease modifying strategies that improve both quality of life and survival, rather than just symptom palliation. Sildenafil, a phosphodiesterase-V inhibitor, has been at the centre of this. Despite controversial beginnings, its success in treating pulmonary arterial hypertension has led to its consideration for related pathologies such as persistent pulmonary hypertension of the newborn and bronchopulmonary dysplasia, as well as the development of a range of alternative formulations. However, this has caused its own controversy and confusion regarding the use of sildenafil in younger patients. In addition, recent data regarding long-term mortality and the repeal of US drugs approval have complicated the issue. Despite such setbacks, sildenafil continues to be a major component of the contemporary care of paediatric pulmonary hypertension in a variety of contexts, and this does not seem likely to change in the foreseeable future.
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