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Updated: Mar 17, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Biophysical aspects and novel treatments of atrial fibrillation
Lorenzo Gigli1, Gian M Rosa1, Maria I Tagliasacchi1
1Department of Cardiology, IRCCS S. Martino Hospital, University of Genoa, Genoa, Italy.
Insights
Atrial fibrillation (AF) treatments like antiarrhythmic drugs and ablation show promise but require improvement. Future research, particularly in AF genetics, may offer new therapeutic avenues for this common arrhythmia.
Area of Science:
- Cardiology
- Electrophysiology
- Genetics
Background:
- Atrial fibrillation (AF) is a prevalent cardiac arrhythmia with complex underlying mechanisms.
- These mechanisms include multiple re-entering wavelets, high-frequency activity, and rotor sources.
Purpose of the Study:
- To review current understanding and treatment of atrial fibrillation.
- To explore emerging therapeutic strategies and future research directions.
Main Methods:
- A narrative review of literature from PubMed and MEDLINE up to May 2016.
- Search terms included "atrial fibrillation" combined with "catheter ablation, pathophysiology, antiarrhythmic drugs".
Main Results:
- Antiarrhythmic drugs are primary AF treatments but have limitations in efficacy and safety.
- Pulmonary vein ablation has evolved from surgical to percutaneous approaches, though complications exist.
- Genetic studies, including micro-RNA, represent a promising area for understanding AF.
Conclusions:
- Significant advancements have improved the understanding of AF's electrophysiological basis.
- Further research, especially in AF genetics, holds potential for novel therapeutic strategies.
Introduction:
Atrial fibrillation (AF) is a cardiac arrhythmia caused by various mechanisms, such as multiple re-entering wavelets, high frequency activity, and rotor sources.
Evidence Acquisition:
This narrative review was based on papers found on PubMed and MEDLINE up to May 2016. The search terms were "atrial fibrillation" in combination with "catheter ablation, pathophysiology, antiarrhythmic drugs".
Evidence Synthesis:
Antiarrhythmic drugs are the cornerstone of therapy in AF, but their efficacy and safety might have to be improved. In case of failure of pharmacologic therapies, other treatments can be considered. A better understanding of the important role of the pulmonary veins has led to new approaches, such as ablation procedures, which were initially only surgical, while percutaneous options were later added. However, these strategies may present various technical complications also when performed by skilled operators. A promising field of investigation is the genetics of AF, as highlighted by studies on the role of micro-RNA.
Conclusions:
Relevant improvement on the knowledge of the electrophysiological basis of genesis and maintenance of AF has been done in order to treat a very common arrhythmia, but further studies, as those in the genetics field, can open new challenging therapeutic horizons.
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