Aveir DR i2i Study

Inclusion Criteria:

1. Subject must have at least one of the clinical indications before device implant inadherence with ACC/AHA/HRS/ESC dual chamber pacing guidelines

2. Subject is ≥ 18 years of age or age of legal consent, whichever age is greater

3. Subject has a life expectancy of at least one year

4. Subject is willing to comply with clinical investigation procedures and agrees toreturn to clinic for all required follow-up visits, tests, and exams

5. Subject has been informed of the nature of the clinical investigation, agrees to itsprovisions and has provided a signed written informed consent, approved by theIRB/EC

Exclusion Criteria:

1. Subject is currently participating in another clinical investigation that mayconfound the results of this study as determined by the Sponsor

2. Subject is pregnant or nursing and those who plan pregnancy during the clinicalinvestigation follow-up period

3. Subject has presence of anatomic or comorbid conditions, or other medical, social,or psychological conditions that, in the investigator's opinion, could confound theassessment of the investigational device and/or implant procedure, limit thesubject's ability to participate in the clinical investigation or to comply withfollow-up requirements of the clinical investigation results

4. Subject has a known allergy or hypersensitivity to < 1 mg of dexamethasone sodiumphosphate or any blood or tissue contacting material listed in the IFU

5. Subject has an implanted vena cava filter or mechanical tricuspid valve prosthesis

6. Subject has pre-existing, permanent endocardial pacing or defibrillation leads (doesnot include lead fragments)

7. Subject has current implantation of either conventional or subcutaneous implantablecardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) device

8. Subject has an implanted leadless cardiac pacemaker (except for an Aveir ventricularleadless pacemaker)

9. Subject is implanted with an electrically-active implantable medical device withstimulation capabilities (such as neurological or cardiac stimulators)

10. Subject is unable to read or write