Accelerometer Sensing for Micra AV Study

Inclusion Criteria: Subject will be implanted with a MicraTM (Model MC1AVR1) for an approved indication.

• Subject has history of AV block.
• Subject is ≥ 18 years old and as per required local law.
• Subject (and/or witness as applicable per local regulations) provides signed and datedauthorization and/or consent per institution and local requirements.
• Subject is willing and able to comply with the protocol.

Exclusion Criteria:

• Subject currently enrolled or planning to participate in a potentially confoundingdrug or device trial during the study. Co-enrollment in concurrent trials is onlyallowed when documented pre-approval is obtained from the Medtronic Clinical ResearchSpecialist.
• Subject implanted with a MicraTM (Model MC1AVR1) on a non-permanent basis (e.g. CIEDinfection).
• Subject is pregnant (if required by local law, women of child-bearing potential mustundergo a pregnancy test within seven days prior to MicraTM Model MC1AVR1 implantprocedures).
• Subject meets any exclusion criteria required by local law (age or other).