This is a trial to assess the effectiveness of an atrial fibrillation (AF) risk prediction algorithm and diagnostic test for the identification of patients with atrial fibrillation

Inclusion Criteria:

Practice inclusion criteria for the trial are as follows;

• GP Practices within National Institute for Healthcare Research (NIHR) Clinical Research Network: West Midlands (CRN: WM) CRN: WM
• GP Practices using EMIS as their electronic medical record system of choice. Patient inclusion criteria for the trial are as follows;
• Patients registered at a participating practice, aged ≥30 years and without an AF diagnosis.
• Patients with a valid index date (see Section 3.3) Participant inclusion criteria for participation in the intervention arm are;
• As above, and who have provided written consent to: attend a research clinic, AF diagnosis check using a 12-lead ECG, and for access to medical records Participant inclusion criteria for participation in further AF remote diagnosis with an AliveCor Heart Monitor are;
• As above, and those with a negative or indeterminant ECG
• As above, and those with access to a smartphone

Exclusion criteria:

• Patients <30 years
• Patients with an existing diagnosis of AF
• Patients for whom the healthcare professional feels the study is unsuitable

It is anticipated that approximately 18,000 patient records will be included in the trial.

It is anticipated that approximately 1,200 undiagnosed patients would be invited for AF diagnosis across all study sites.30 years is taken as the minimum age entry criteria as the algorithm was built on information from patients >30 years where AF becomes more prevalent.