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[Current aspects of electrical cardioversion in patients with persistent atrial fibrillation]
Frank Mickley1, Steffen Löscher, Andreas Hartmann
1Klinik für Innere Medizin, Städtisches Klinikum "St.Georg", Leipzig, Germany. frank.mickley@sanktgeorg.de
Insights
Rhythm control via cardioversion is not superior to rate control for atrial fibrillation management. However, specific patient subgroups may still benefit from restoring normal sinus rhythm.
Area of Science:
- Cardiology
- Electrophysiology
Background:
- Recent studies indicate evolving strategies for atrial fibrillation management.
- Trials comparing rhythm control (cardioversion + drugs) with rate control show no superiority for rhythm control.
Purpose of the Study:
- To explore the role of cardioversion in specific patient subgroups.
- To discuss ongoing debates regarding subgroup definition and sinus rhythm stabilization.
Main Methods:
- Direct current transthoracic cardioversion is a primary method for restoring sinus rhythm.
- Anticoagulation is crucial for the safety and efficacy of cardioversion.
Main Results:
- Sinus rhythm restoration is achievable in approximately 90% of persistent atrial fibrillation cases.
- Cardioversion may benefit younger patients with normal hearts and those with frequent/severe symptoms.
Conclusions:
- While not universally superior, cardioversion remains a valuable option for select atrial fibrillation patients.
- Further research is needed to define optimal subgroups and improve sinus rhythm stability post-cardioversion.
Background:
Results of recent studies suggest new aspects in the concept of the management of patients with atrial fibrillation. Current trials comparing rhythm control by cardioversion followed by antiarrhythmic drug therapy with heart rate control only showed that rhythm control was not superior to rate control.
Special Aspects Of Electrical Cardioversion:
However, some subgroups of patients with frequent or severe symptoms and younger patients with structurally normal hearts may benefit from cardioversion. In patients with persistent atrial fibrillation, sinus rhythm can be restored in approximately 90% by direct current transthoracic cardioversion. Transthoracic cardioversion is effective and safe, if anticoagulation is used. Attempts have been made to improve the success rate by new techniques. However, definition of subgroups and stabilization of sinus rhythm are ongoing issues of debate.
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