A Study to Determine if Identification of Undiagnosed Atrial Fibrillation in People at Least 70 Years of Age Reduces the Risk of Stroke

This a prospective, randomized study in primary care practices.

Inclusion criteria

• Men and women at least 70 years of age who are new or established participants in the primary care practice
• Willing to provide consent to participate in the study and to use personal health information to ascertain endpoints from the Center for Medicare & Medicaid Services (CMS) Medicare Claims Database and to access data from health records
• Health insurance by Medicare Parts A & B (Medicare Fee-for-service)

Exclusion criteria

• Oral anticoagulation (OAC) for any indication at the time of enrollment
• History of Atrial Fibrillation (AF) or Atrial Flutter (AFL) as documented in the participant's current medical problem list
• Any condition the investigator considers a contraindication to OAC, e.g., bleeding that required medical attention or severe renal impairment
• Any condition the investigator considers will prevent compliance with study instructions
• Implanted cardiac devices (pacemakers, implantable cardiac defibrillators, or cardiac resynchronization therapy, and implantable loop recorders)
• History of allergy to adhesive
• Not able to wear the Zio®XT monitor or not able to apply the monitor by herself/himself or with the help of a caregiver

Other protocol-defined inclusion/exclusion criteria could apply