DEFINE AFib (Atrial Fibrillation)

Inclusion Criteria

• Patients with a LINQ ICM who have a self-reported history of AF and who have received an ICM for the following device-logged indications, categorized into the following discrete groups:

• AF management: AF management and post-ablation management indications

• Suspected AF: Suspected AF and palpitations indications

• Stroke: Cryptogenic stroke indication

• Individual Access and ability to use an Apple iPhone® compatible with Medtronic's research app (iOS® v. 13.X or higher)

• Patient is willing and able to comply with the protocol, including CareLink transmissions (requires adequate connectivity), remotely administered instructions, and remote survey participation

• Patient is 22 years of age or older

• Located in the United States, with CareLink managed through servers located in United States (50 states or District of Columbia)

• Valid email address from self-report at enrollment

• Patient must be able to read and write in English

Exclusion Criteria Patients with > 24 months elapsed time from recorded LINQ device implant or > 48 months elapsed from recorded LINQ II implant date