Plain-English translation of ·
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing when doctors should place stents (small metal tubes that hold arteries open) in the branch pulmonary arteries of people with certain congenital heart conditions. Some patients will receive the stent placement right away following standard care, while others will receive conservative management with the stent placement postponed for six months. The study wants to understand how this timing affects exercise ability and how well the heart's right chamber works.
People born with these heart conditions have better survival rates than before, but they often need additional procedures as they grow up. Doctors don't yet have clear guidelines about the best time to place these stents, and it's unclear how much they actually improve exercise capacity and heart function in the long term.
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You will be randomly assigned to one of two groups: either you'll receive the stent placement procedure right away, or you'll receive standard monitoring and care with the procedure postponed for six months. Throughout the study, you'll complete exercise tests to measure how far you can walk or run and how much oxygen your body uses during activity. You'll also have heart imaging (like ultrasound or specialized MRI scans) to check how well your heart is working. The study will follow you across multiple Dutch heart centers over time to compare which timing approach helps you exercise better and protects your heart's function.
AI-generated summary from trial data · Jun 5, 2026 · Not medical advice
Netherlands