Related Experiment Video
Updated: Apr 25, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Utility of anti-arrhythmic medications in 'lone atrial fibrillation'
Ramanan Kumareswaran, Paul Dorian1
1St. Michael's Hospital, 30 Bond Street, 6-050Q, Toronto, Ontario, M5B 1W8, Canada. dorianp@smh.ca.
Insights
Lone atrial fibrillation treatment focuses on improving quality of life, not mortality. Anti-arrhythmic drugs may help maintain sinus rhythm and enhance well-being in these patients.
Area of Science:
- Cardiology
- Electrophysiology
- Pharmacology
Background:
- Lone atrial fibrillation (AF) encompasses diverse conditions with poorly understood pathophysiology.
- Current treatments like rate and rhythm control do not improve mortality in AF patients.
- Improving health-related quality of life is the primary treatment goal for lone AF.
Purpose of the Study:
- To evaluate the role of anti-arrhythmic medications in managing lone atrial fibrillation.
- To assess the potential benefits of anti-arrhythmic drugs on sinus rhythm maintenance and quality of life.
Main Methods:
- Review of randomized controlled trials, primarily including patients with paroxysmal atrial fibrillation.
- Inferences drawn from existing literature due to limited specific studies on lone AF.
Main Results:
- Anti-arrhythmic medications are effective in maintaining sinus rhythm.
- Evidence suggests these medications likely improve quality of life in lone atrial fibrillation patients.
Conclusions:
- Anti-arrhythmic drugs represent a potential therapeutic option for lone AF.
- Further research is warranted to specifically investigate anti-arrhythmic efficacy in lone AF populations.
Abstract:
Lone atrial fibrillation is a set of heterogeneous disorders grouped together due to our limited understanding of their pathophysiology. Rate control and rhythm control are two strategies used to treat atrial fibrillation but neither has shown improvement in mortality. Therefore, the goal of treatment in patients with lone atrial fibrillation is to improve health related quality of life. Anti-arrhythmic medications are not well studied in lone atrial fibrillation patient population in randomized controlled fashion. However, inferences can be made from trials that mainly included paroxysmal atrial fibrillation patients. Anti-arrhythmic medications are useful in maintenance of sinus rhythm and probably improve quality of life in lone atrial fibrillation.
Related Concept Videos
Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers
Antiarrhythmic Drugs: Class I Agents as Sodium Channel Blockers
Class 1A Antiarrhythmic Drugs: These drugs work by moderately blocking sodium channels,...
Dysrhythmias VI: Management of Dysrhythmias
Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...

