Atrial fibrillation rhythm control — MCCQE Part 1 MCQ

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A 42-year-old woman with persistent atrial fibrillation is symptomatic despite adequate rate control and has normal ventricular function. According to CCS atrial fibrillation guidelines, which factor most strongly supports referral for rhythm control strategies such as catheter ablation?

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Atrial fibrillation rhythm control — MCCQE Part 1 MCQ | iatroX