The Living Guidelines: Patients with hypertrophic cardiomyopathy: Polling Results for CLASS IIa Guidelines

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Class IIa Guidelines
1. Antiarrhythmic medications can be useful to prevent recurrent AF in patients with hypertrophic cardiomyopathy. Available data are insufficient to recommend one agent over another in this situation, but (a) disopyramide combined with a beta blocker or non dihydropyridine calcium channel antagonist or (b) amiodarone alone is generally preferred. (Level of Evidence: C)

 ACC / AHA 2008 guidelines for diagnosis and management of atrial fibrillation: Class IIa Recommendation 1 for patients with hypertrophic cardiomyopathy should be: CLASS I CLASS IIa CLASS IIb CLASS III