Stopped: Unable to recruit adequate number of participants in required time frame.
Of the 19,000 pacemakers implanted across Canada in 2002, 1/3 of them were for patients 80 years and older. This is the fastest growing segment of our population, yet no study has specifically been done in this age group to determine the optimal pacing mode. We wish to determine whether dual chamber or single chamber pacing is associated with a reduction in emergency room visits or hospitalizations for cardiovascular causes (e.g., congestive heart failure (CHF), atrial fibrillation (AF)) resulting in improved quality of life.
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To determine which pacing mode, physiologic or ventricular, is associated with a reduction in emergency room visits or hospitalizations for cardiovascular/cerebrovascular causes
Timeframe: approximately 3 - 5 years