Heart surgery for AF: how well does it really work?
NCT ID NCT03091452
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is a registry that collects information on 2,000 people with atrial fibrillation who have heart surgery to treat it. The goal is to see how well the surgery works in everyday medical practice and what complications occur. No new treatment is being tested; instead, researchers are gathering data to improve future care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2017
- Expected to finish
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Dec 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients in whom atrial fibrillation is treated by cardiac surgical ablation
- Ages
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18 to 100 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Atrial fibrilation * Treated by cardiac surgical ablation Exclusion Criteria: * Patient denies participation
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
3 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Asklepios Harburg
NOT_YET_RECRUITINGHamburg, Free and Hanseatic City of Hamburg, 21075, Germany
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Klinikum Bogenhausen
RECRUITINGMünchen, Bavaria, 81925, Germany
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Schüchtermann Kliniken
RECRUITINGBad Rothenfelde, North Rhine-Westphalia, 49214, Germany
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- High-resolution Contrast-Enhanced MRI of atrial fibrillation patients prior to FIRM ablation
- Apple watch vs. medical monitor: which better detects hidden heart rhythm problems?
- Can a new ultrasound catheter give doctors a better view inside the heart?
- Can dropping one blood thinner cut bleeding without raising heart risks?
- Hidden heart rhythm problems after stroke: can longer monitoring prevent a second stroke?
- Can a blood test reveal why atrial fibrillation returns after cryoablation?