Lifestyle overhaul may keep atrial fibrillation at bay
NCT ID NCT03682991
First seen Feb 24, 2026 · Last updated Jun 22, 2026 · Updated 17 times
Summary
This study tests whether intensive lifestyle changes—like treating sleep apnea, cutting alcohol, exercising, losing weight, and managing blood pressure—can stop atrial fibrillation (AF) from coming back after a heart procedure called catheter ablation. About 509 people with AF who are at higher risk due to factors like obesity, high blood pressure, or smoking are taking part. The goal is to see if these changes reduce hospital visits and serious AF episodes.
Disclaimer
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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.
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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Foothills Hospital
Calgary, Alberta, Canada
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Hamilton Health Sciences Center
Hamilton, Ontario, Canada
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Kelowna General Health
Kelowna, British Columbia, Canada
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Laval Hospital
Laval, Quebec, Canada
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London Health Sciences Center
London, Ontario, Canada
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Mazankowski Alberta Heart Institute
Edmonton, Alberta, Canada
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McGill University Health Centre
Montreal, Quebec, Canada
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Montreal Heart Institute
Montreal, Quebec, Canada
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Ottawa Heart Institute
Ottawa, Ontario, Canada
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QE II Health Sciences Centre
Halifax, Nova Scotia, B3H 3A7, Canada
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Regina General Hospital
Regina, Saskatchewan, Canada
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Sacre Coeur Hospital
Montreal, Quebec, Canada
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Saint John Regional Hospital
Saint John, New Brunswick, Canada
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St. Mary's General Hospital
Kitchener, Ontario, Canada
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St. Michael's Hospital
Toronto, Ontario, Canada
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St. Paul's Hospital
Vancouver, British Columbia, Canada
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Sunnybrook Health Sciences Centre
Toronto, Ontario, Canada
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Aggressive risk factor control (lifestyle changes including sleep apnea treatment, alcohol reduction, exercise, weight loss, blood pressure management, and smoking cessation)
What this could lead to
If it works, this could show that intensive lifestyle changes help prevent atrial fibrillation from coming back after a heart procedure.
What could go wrong
This is a behavioral intervention, not a drug, so results depend heavily on patient adherence. The study is still ongoing, and it may not prove that these changes alone prevent AF recurrence.
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.