The Effect of Beta-blocker on Chronotropic Response and Cardiorespiratory Fitness in Patients With Atrial Fibrillation
Recruiting
N/A
Interventional Study
Atrial Fibrillation
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
At a Glance
- Age
- 20 and older
- Sex
- Any
- Study type
- Interventional
- Purpose
- Treatment
- Participants needed
- 40 (estimated)
- Sponsor
- National Taiwan University Hospital · Other
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About This Trial
This is a prospective study to evaluate changes in exercise capacity and chronotropic response to exercise before and after beta-blocker dosage reduction in patients with atrial fibrillation (AF).
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
1. \> 20 years of age.
2. Clinically stable patients with persistent atrial fibrillation using beta-blocker as rate-control agent without dosage adjustment for at least 3 months.
3. Resting heart rate \< 80 bpm.
4. Left ventricular ejection fraction \> 50%.
Exclusion Criteria:
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Contacts