Tiny study tests ablation for tough heart condition – but ends early
NCT ID NCT04282850
First seen Jan 26, 2026 · Last updated Jun 22, 2026 · Updated 22 times
Summary
This pilot study compared a heart ablation procedure (pulmonary vein isolation) to standard medications for managing atrial fibrillation in people with heart failure with preserved ejection fraction. Only 13 participants were enrolled before the study was terminated early. The main goal was to see if ablation could reduce the amount of time spent in atrial fibrillation and improve exercise capacity.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Inova Heart and Vascular Institute
Fairfax, Virginia, 22031, United States
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Pulmonary vein isolation (a heart ablation procedure)
What this could lead to
If successful, this could show that ablation improves exercise capacity and reduces AF burden better than medications alone for people with both atrial fibrillation and heart failure with preserved ejection fraction.
What could go wrong
This was a very small pilot study (13 participants) that was terminated early, so results are limited and may not apply to larger populations. The procedure also carries risks like bleeding, infection, or heart rhythm complications.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.