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Updated: Jun 20, 2026

Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
Published on: November 18, 2018
[Pulmonary hypertension and pulmonary circulation in congenital heart disease]
1UK Service for Pulmonary Hypertension in Children, Great Ormond Street Hospital, London. NeickI@gosh.nhs.uk
Insights
Congenital heart defects can lead to pulmonary arterial hypertension. New medications targeting pulmonary circulation improve outcomes for adults with these complex conditions.
Area of Science:
- Cardiology
- Pulmonary Medicine
- Vascular Biology
Context:
- Congenital cardiac malformations frequently involve pulmonary hypertension and vascular changes.
- Pulmonary arterial hypertension affects 5-10% of adults with congenital heart disease, ranging from mild to severe (Eisenmenger reaction).
- Limited medical treatment options were previously available for these patients.
Purpose:
- To review the current understanding and treatment of pulmonary hypertension associated with congenital heart disease.
- To highlight the impact of novel pulmonary vasoactive and antiproliferative agents.
- To emphasize the need for specialized care in managing these complex cases.
Summary:
- New therapeutic agents, including endothelin receptor antagonists, phosphodiesterase-5 inhibitors, and prostanoids, offer improved treatment for pulmonary hypertension in congenital heart disease.
- These medications address endothelial dysfunction and antiproliferative pathways, enhancing outcomes.
- Even patients with severe malformations like Fontan circulation or pulmonary atresia can benefit.
Impact:
- Advances in medical therapy offer new hope for patients with complex congenital heart disease and pulmonary hypertension.
- Improved treatment strategies can lead to better quality of life and prognosis for affected individuals.
- Management requires specialized multidisciplinary care in dedicated congenital heart disease centers.
Abstract:
Congenital cardiac malformations are often associated with pulmonary hypertension and structural changes of both, the larger and smaller vessels of the pulmonary circulation. Approximately 5 to 10 % of adults with congenital heart disease, surgically treated or untreated, develop pulmonary arterial hypertension of variable severity from mild to severe (Eisenmenger reaction). Until recently, medical treatment options for the affected patients were very limited. Meanwhile, the advent of new pulmonary vasoactive and antiproliferative substances (including endothelin receptor antagonists, phosphodiesterase-5-inhibitors, prostanoids) offer the option to correct abnormalities in pulmonary endothelial function and to improve the outcome of affected patients. Even patients with severe congenital cardiac malformations and Fontan-type circulation or patients with pulmonary atresia and aorto-pulmonary collaterals may benefit from these new treatment strategies. In any case, the complexity of congenital cardiac malformations when associated with abnormalities in the pulmonary circulation and/or pulmonary arterial hypertension, requires medical care and follow-up in specialized centers for (adult) congenital heart disease.
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