[Cardioversion for atrial fibrillations: not better than ventricular rate control]

Area of Science:

• Cardiology
• Geriatrics

Context:

• Atrial fibrillation (AF) is a common arrhythmia in older adults.
• Treatment options include rate control and rhythm control (cardioversion).
• Rate control is simpler but doesn't eliminate AF risks; rhythm control restores sinus rhythm but requires antiarrhythmics.

Purpose:

• To compare the efficacy and safety of rate control versus rhythm control in elderly patients with atrial fibrillation.
• To evaluate the long-term outcomes associated with each treatment strategy.

Summary:

• Recent randomized trials indicate that rate control is not inferior to rhythm control for managing atrial fibrillation in the elderly.
• Rhythm control, while restoring sinus rhythm, was associated with increased risks of mortality, heart failure, stroke, and pacemaker implantation.
• Optimal management of recurrent atrial fibrillation involves rate control (digitalis, beta-blockers, calcium antagonists) combined with oral anticoagulation.

Impact:

• Findings suggest rate control is a preferred strategy for atrial fibrillation in the elderly due to comparable efficacy and a potentially better safety profile.
• Emphasizes the continued importance of oral anticoagulation for stroke prevention, regardless of the chosen rhythm control strategy.