August 1, 1994HeartOpen Access

Functional capacity before and after cardioversion of atrial fibrillation: a controlled study.

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Why the study?

Does restoration of sinus rhythm via electrical cardioversion improve peak oxygen consumption in patients with chronic atrial fibrillation?

Structured PICO

Does restoration of sinus rhythm via electrical cardioversion improve peak oxygen consumption in patients with chronic atrial fibrillation?

Population

63 consecutive patients with chronic atrial fibrillation accepted for treatment with electrical cardioversion, pre-treated with digoxin, verapamil, or both to attain a resting heart rate <= 100 beats per minute.

Intervention

Electrical cardioversion resulting in maintenance of sinus rhythm at 1 month

Comparator

Electrical cardioversion resulting in recurrence of atrial fibrillation at 1 month

Outcome

Peak oxygen consumption (peak VO2) measured before and 1 month after electrical cardioversionsurrogate

Restoration of sinus rhythm via electrical cardioversion significantly improves functional capacity (peak VO2) in patients with chronic atrial fibrillation, regardless of underlying heart disease.

Discussion

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Implication

Sustained sinus rhythm after cardioversion associated with increased peak VO2; leaves open whether rhythm control improves functional capacity in chronic AF.

Cite This Study

Gosselink et al. (1994) studied this question.

synapsesocial.com/papers/6a123460c031bb6829a6180c https://doi.org/10.1136/hrt.72.2.161

Topics

Atrial fibrillation Persistent AF management AF ablation outcomes Anticoagulation in AF

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Implication

Sustained sinus rhythm after cardioversion associated with increased peak VO2; leaves open whether rhythm control improves functional capacity in chronic AF.