Burden of atrial high-rate episodes and risk of stroke: a systematic review.

Atrial fibrillation (AF) patients have increased risk of stroke. In paroxysmal AF, the combination of duration and frequency of episodes defines AF burden. In patients with cardiac implantable electronic devices (CIEDs), atrial high-rate episodes (AHREs) can be monitored continuously and are considered as a proxy for AF. This systematic review aims to determine the relationship between AF burden and risk of thrombo-embolic events (TBEs).