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The Optimal Anticoagulation for Enhanced Risk Patients Post-Catheter Ablation for Atrial Fibrillation Trial - OCEAN

Atrial Fibrillation

Atrial fibrillation is an abnormal heart rhythm in which can increase the risk of developing clots in the heart which can then break off and travel to the brain and cause a stroke.
Catheter ablation is a procedure which is used to restore the regular rhythm of the heart; however even when this treatment is successful, patients still may have an increased risk of having a stroke compared to people who have never had atrial fibrillation.

Two types of medication are presently prescribed to patients following their catheter ablation (even if it appears to have been successful in eliminating atrial fibrillation): an antiplatelet (such as aspirin), or an anticoagulant (also known as a blood thinner). This study is being done in order to find out which type of medication works best for preventing strokes in people who have had a successful catheter ablation.

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Participation Requirements

  • Sex:

    Male, Female, Intersex
  • Eligible Ages:

    18 to 85

Participation Criteria

Inclusion Criteria:
->18 years old
-At least 1 year following successful catheter ablation for AF (Holter monitor reports required)
-Acceptable stroke risk score (determined by physician)
Exclusion Criteria:
-Unable to use blood thinners
-Kidney disease
-Metal heart valve
-Unable to have MRI
-Stroke within 1 year

Study Location

Victoria Cardiac Arrhythmia Trials Inc.
Victoria Cardiac Arrhythmia Trials Inc.
Victoria, British Columbia
Canada

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St. Mary's General Hospital
St. Mary's General Hospital
Kitchener, Ontario
Canada

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Scarborough Health Network- Rougevalley
Scarborough Health Network- Rougevalley
Toronto, Ontario
Canada

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Centre Hospitalier de L'Universite de Montreal (CHUM)
Centre Hospitalier de L'Universite de Montreal (CHUM)
Montreal, Quebec
Canada

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Institut Universitarie de Cardiologie et de Pneumologie de Quebec
Institut Universitarie de Cardiologie et de Pneumologie de Quebec
Québec, Quebec
Canada

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Royal Columbian/Fraser Clinical Trials
Royal Columbian/Fraser Clinical Trials
New Westminster, British Columbia
Canada

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Hamilton Health Sciences Centre
Hamilton Health Sciences Centre
Hamilton, Ontario
Canada

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Southlake Regional Health Centre
Southlake Regional Health Centre
Newmarket, Ontario
Canada

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Sunnybrook Health Sciences Centre
Sunnybrook Health Sciences Centre
Toronto, Ontario
Canada

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McGill University Health Centre
McGill University Health Centre
Montreal, Quebec
Canada

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St. Paul's Hospital
St. Paul's Hospital
Vancouver, British Columbia
Canada

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Kingston General Hospital
Kingston General Hospital
Kingston, Ontario
Canada

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University of Ottawa Heart Institute
University of Ottawa Heart Institute
Ottawa, Ontario
Canada

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Sherbrooke- Grandby site
Sherbrooke- Grandby site
Granby, Quebec
Canada

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Montreal Health Institute
Montreal Health Institute
Montreal, Quebec
Canada

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Foothills Medical Centre
Foothills Medical Centre
Calgary, Alberta
Canada

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Queen Elizabeth II Health Sciences Centre
Queen Elizabeth II Health Sciences Centre
Halifax, Nova Scotia
Canada

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London Health Sciences Centre
London Health Sciences Centre
London, Ontario
Canada

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St. Michael's Hospital
St. Michael's Hospital
Toronto, Ontario
Canada

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Hôpital du Sacré-Coeur de Montreal
Hôpital du Sacré-Coeur de Montreal
Montreal, Quebec
Canada

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Centre Hospitalier Universitaire de Sherbrooke
Centre Hospitalier Universitaire de Sherbrooke
Sherbrooke, Quebec
Canada

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University of Calgary
University of Calgary
Calgary, Alberta
Canada

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Study Sponsored By
Ottawa Heart Institute Research Corporation
Participants Required
More Information
Study ID: NCT02168829