Why the study?
Does an individually programmed optimal AV delay improve physical work capacity in patients with dual chamber pacemakers for high degree AV block?
Does an individually programmed optimal AV delay improve physical work capacity in patients with dual chamber pacemakers for high degree AV block?
While individually optimizing AV delay improves resting ejection fraction in patients with dual chamber pacemakers, it does not translate to improved physical work capacity.
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Optimal AV delay improves resting LVEF without raising peak VO2; challenges routine echocardiographic optimization for exercise capacity in dual-chamber pacing.
Frielingsdorf et al. (1994) studied this question.
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