Can extra pacing shrink an enlarged heart? new study explores
NCT ID NCT01994252
First seen May 01, 2026 · Last updated May 19, 2026 · Updated 6 times
Summary
This study looked at 200 people with permanent atrial fibrillation (an irregular heartbeat) and heart failure (a weak heart pump). Researchers wanted to see if adding pacing to both lower heart chambers, along with a defibrillator, could shrink the heart's main pumping chamber and improve function. Participants already had a defibrillator and were followed to measure survival, heart failure events, heart size, and quality of life.
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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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CHUM Centre hospitalier universitaire de Montréal
Montreal, Quebec, Canada
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Hamilton Health Sciences
Hamilton, Ontario, Canada
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Institut universitaire de cardiologie et de pneumologie de Quebec
Québec, Quebec, Canada
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Kingston General Hospital
Kingston, Ontario, Canada
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Le Centre hospitalier universitaire de Sherbrooke
Sherbrooke, Quebec, Canada
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Libin Cardiovascular Institute of Alberta
Calgary, Alberta, Canada
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London Health Sciences Centre
London, Ontario, N6A 5A5, Canada
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McGill Health Science Centre
Montreal, Quebec, Canada
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Montreal Heart Institute
Montreal, Quebec, Canada
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Queen Elizabeth II Health Science
Halifax, Nova Scotia, Canada
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St. Boniface General Hospital
Winnipeg, Manitoba, Canada
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St. Michael's General Hospital
Toronto, Ontario, Canada
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University of Ottawa Heart Institute
Ottawa, Ontario, K1W 4W7, Canada
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Vancouver General Hospital
Vancouver, British Columbia, Canada
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Victoria Cardiac Arrhythmia Trials
Victoria, British Columbia, V8R 4R2, Canada
Conditions
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