MAUDE Adverse Event Report: MEDTRONIC IRELAND MICRA; LEADLESS PACEMAKER

Model Number MC1VR01US

Device Problems Premature Discharge of Battery (1057); Failure to Capture (1081); Failure to Interrogate (1332); Pacing Problem (1439)

Patient Problems Bradycardia (1751); Dyspnea (1816); Fatigue (1849)

Event Date 10/05/2022

Event Type  Injury  

Event Description

It was reported that approximately two months post implant the patient experienced severe bradycardia, shortness of breath and low energy due to the leadless implantable pulse generator (ipg) exhibiting premature battery depletion.It was further reported that the leadless ipg was unable to be interrogated in multiple positions with several programmers and loss of capture, pacing spikes were observed.The patient became became very symptomatic once the leadless ipg stopped working.The leadless ipg was removed and replaced with a transvenous system. no further patient complications have been reported as a result of this event.

Manufacturer Narrative

Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided 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.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

Manufacturer Narrative

Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided 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.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

Manufacturer Narrative

Product event summary: the device was returned and analyzed.Analysis of the returned device was inconclusive.Hybrid analysis revealed that the no-output/ no-telemetry condition was confirmed and was due to early battery depletion.The cause of the early battery depletion was not determined as no hybrid anomalies were identified.Battery analysis revealed that the battery had very high internal resistance.Electrical testing and destructive analysis indicated the battery was exposed to a high external current drain (up to and including a direct short) which caused the high internal resistance condition.No evidence of an internal mechanism for premature battery depletion was found during destructive analysis.No anomalies were found with the feedthrough etfe coating.No problems were found with the micra battery medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided 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.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

• Brand Name: MICRA
• Type of Device: 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: paula bixby ; 8200 coral sea st ne; mounds view, MN 55112 ; 7635055378
• MDR Report Key: 15657790
• MDR Text Key: 302259639
• Report Number: 9612164-2022-03903
• Device Sequence Number: 1
• Product Code: PNJ
• UDI-Device Identifier: 00643169711761
• UDI-Public: 00643169711761
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: P150033
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,Company Representative
• Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup,Followup
• Report Date: 02/23/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 10/24/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 04/14/2023
• Device Model Number: MC1VR01US
• Device Catalogue Number: MC1VR01US
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Manufacturer Received: 02/03/2023
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 10/26/2021
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Hospitalization
• Patient Age: 71 YR
• Patient Sex: Male
• Patient Weight: 73 KG