MAUDE Adverse Event Report: Medtronic Ireland Micra AV; LEADLESS PACEMAKER

Model Number	MC1AVR1
Medical Device Problem Codes	Failure to Capture (1081); Pacing Problem (1439); Under-Sensing (1661); High Capture Threshold (3266)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/27/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the leadless implantable pulse generator (ipg) exhibited undersensing resulting in unnecessary ventricular pacing.Loss of capture resulting in high thresholds were noted as well.The leadless ipg remains in use.No patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

• Brand Name: Micra AV
• Common Device Name: LEADLESS PACEMAKER
• Manufacturer (Section D): Medtronic Ireland; parkmore business park west; galway ; EI
• Manufacturer (Section G): Medtronic Ireland; parkmore business park west; galway ; EI
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112--439 ; +1(763)526-9277
• MDR Report Key: 50188545
• Report Number: 9612164-2026-04007
• Device Sequence Number: 13275860
• Product Code: PNJ
• UDI-Device Identifier: 00763000078621
• UDI-Public: (01)00763000078621(17)250628
• Combination Product (Y/N): N
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: P150033
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 08/09/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 06/28/2025
• Device Model Number: MC1AVR1
• Device Catalogue Number: MC1AVR1
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/21/2026
• Initial Report FDA Received Date: 08/09/2026
• Date Device Manufactured: 01/19/2024
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 70 YR
• Patient Sex: Female
• Patient Weight: 157 LB