A whitepaper of the AF-SCREEN International Collaboration recommends single-timepoint screening of people ≥65 years of age.
For those ˃75 years of age or in younger age groups at increased risk of atrial fibrillation or stroke, 2 weeks of twice-daily intermittent atrial fibrillation screening is proposed.
The Preventicus Heartbeats app works on this basis. Find more information here.
Source: Screening for Atrial Fibrillation, A Report of the AF-SCREEN International Collaboration. Circulation May 9th 2017 issue 19; Vol 135.