Atrial fibrillation is associated with the occurrence of ischemic stroke. Oral anticoagulation may prevent strokes. Screening for previously undetected AF therefore appears to be a promising approach to prevent strokes. Among numerous other scientific studies, the results of 2 trials with clinical endpoints, the STROKESTOP and LOOP trials, have been available since August 2021. They provide first evidence that atrial fibrillation screening may be efficient. Further scientific studies regarding this issue are ongoing.