What is the risk of ischemic stroke associated with an hour of AHRE burden?
In the SOS AF project, a 1-h threshold of AHRE burden was associated with an HR for ischemic stroke of 2.11 (95% CI, 1.22-3.64; P .008), although the absolute risk of ischemic stroke in patients with AHREs was low (0.39% annual rate in the whole cohort).