The Living Guidelines: Direct-current cardioversion of atrial fibrillation and atrial flutter: Polling Results for CLASS III Guidelines

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Class III Guidelines
1. Frequent repetition of direct-current cardioversion is not recommended for patients who have relatively short periods of sinus rhythm between relapses of AF after multiple cardioversion procedures despite prophylactic antiarrhythmic drug therapy. (Level of Evidence: C)

 ACC / AHA 2008 guidelines for diagnosis and management of atrial fibrillation: Class III Recommendation 1 for Direct-current cardioversion of atrial fibrillation and atrial flutter should be: CLASS I CLASS IIa CLASS IIb CLASS III 2. Electrical cardioversion is contraindicated in patients with digitalis toxicity or hypokalemia. (Level of Evidence: C)

 ACC / AHA 2008 guidelines for diagnosis and management of atrial fibrillation: Class III Recommendation 2 for Direct-current cardioversion of atrial fibrillation and atrial flutter should be: CLASS I CLASS IIa CLASS IIb CLASS III