Heart rhythm showdown: which surgery best stops AFib?
NCT ID NCT07100483
First seen Jun 27, 2026 · Last updated Jul 17, 2026 · Updated 2 times
Summary
This study compares three different surgical ablation techniques (Cox-Maze IV, Tampa 2, and EnCompass alone) to treat atrial fibrillation, a common heart rhythm problem. About 220 adults with AFib who are already having heart surgery will be randomly assigned to one of the three methods. The main goal is to see which approach best keeps the heart in normal rhythm one year after surgery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 220 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Sep 2032
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.
- Ages
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18 to 85 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult patients with a history of preoperative atrial fibrillation, either paroxysmal or persistent, requiring concomitant surgical ablation who are scheduled to undergo cardiac surgical procedure(s) to be performed on cardiopulmonary bypass * Utilizing sternotomy approach requiring cardiopulmonary bypass * Male or Female subjects between age 18 to 85 years of age Exclusion Criteria: * LVEF \< 25% * LAVI \> 59ml/m② * Presence of Pacemaker/AICD * History of VT/VF, WPW * Re-operative cardiac surgery
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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
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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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Corewell Health West
Grand Rapids, Michigan, 49503, United States
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