Clinical Research Directory

Inclusion Criteria: 1. Adult aged \> 18 years 2. Clinically stable by investigator assessment 3. Has a newly implanted or existing wireless CIED: single, dual-chamber, biventricular, subcutaneous/extravascular, and leadless systems are all eligible, including pacemakers or implantable cardioverter-defibrillators (ICDs) 4. CIED is from one of the 4 major CIED manufacturers in the US market (99% of implants in the US): Medtronic, Boston Scientific, Abbott, Biotronik 5. Currently enrolled in remote monitoring as part of standard of care 6. Primary clinical electrophysiology follow-up at the enrolling center 7. Understands spoken and written English, Spanish, or Portuguese 8. Has sufficient cognitive function to answer standardized questions about study rationale and procedures. Exclusion Criteria: 1. Presence of insertable cardiac monitor, either in isolation or in combination with any other CIED 2. Listed for cardiac transplantation prior to enrollment (N.B. if a patient becomes listed for transplantation during the study, they may continue study participation) 3. Participation in another study related to novel CIED technology or remote monitoring.