Not all paroxysmal AF is low risk

Stroke risk for a patient with paroxysmal atrial fibrillation depends on the amount of time they are in AF, even if they have a low CHA2DS2-VASc score, a study suggests.

The US study of patients with paroxysmal AF, who were not on anticoagulants, showed those with the greatest AF burden, determined by continuous monitoring, had a three-fold increased risk of ischaemic stroke or other arterial thromboembolic events compared with those with a lower burden.

The findings raised the question of whether patients with a high AF burden might benefit from

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