Ventricular rate control during atrial fibrillation and AV node modifications: past, present, and future

Area of Science:

• Cardiology
• Electrophysiology

Background:

• Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia.
• Current treatment strategies include rhythm control (maintaining sinus rhythm) and rate control (slowing ventricular response).
• Anticoagulation is recommended for both strategies.

Purpose of the Study:

• To review current clinical and experimental approaches for rate control in AF.
• To highlight the efficacy of targeting the atrioventricular (AV) node for rate management.

Main Methods:

• Review of existing clinical trials comparing rate and rhythm control.
• Discussion of pharmacological, anatomical, and autonomic methods to influence AV node function.
• Exploration of novel experimental modalities for AV node modulation.

Main Results:

• Clinical trials indicate rate control is non-inferior to rhythm control for AF management.
• Rate control is an acceptable primary therapy for a significant number of AF patients.
• The atrioventricular (AV) node is a key target for achieving rate control.

Conclusions:

• Rate control offers a viable and effective primary treatment option for atrial fibrillation.
• Modulating AV node properties through various interventions is central to successful rate control.
• Further research into novel AV node-targeting strategies holds promise for enhancing AF treatment.