Patients with hypertrophic cardiomyopathy and symptomatic heart failure (NYHA class II–IV) face an additional challenge when atrial fibrillation develops or becomes poorly controlled. This combination warrants structured, prompt clinical action.
Heart failure NYHA class II–IV with new-onset or poorly controlled atrial fibrillation. New-onset or poorly controlled AF can exacerbate symptoms in this setting and requires immediate management.
DOI: 10.1093/eurheartj/ehad194
New-onset or poorly controlled AF can exacerbate symptoms caused by LVOTO and should be managed by prompt restoration of sinus rhythm or ventricular rate control.
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