MAUDE Adverse Event Report: MPRI ATTAIN OVER THE WIRE LEAD; IMPLANTABLE PULSE GENERATOR, PACEMAKER (NON-CRT)

Model Number	419388
Medical Device Problem Codes	High impedance (1291); Low impedance (2285); Capturing Problem (2891); Impedance Problem (2950)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/13/2024
Type of Reportable Event	Serious Injury
Event or Problem Description
It was further reported that the lv lead output was reprogrammed with extended pulse width for an appropriate safety margin.
Additional Manufacturer Narrative
Product event summary: the lead was not returned for analysis, however, performance data collected from the device was received and analyzed.Analysis of the device memory indicated the impedance of the left ventricular pacing lead was beyond the expected upper range.Analysis of the device memory indicated the impedance trend of the left ventricular pacing lead was rising.Analysis of the device memory indicated the impedance trend of the left ventricular pacing lead was variable.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.
Additional Manufacturer Narrative
Continuation of d10: w1tr01 crt-p implanted (b)(6) 2023.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.
Event or Problem Description
It was reported that the left ventricular (lv) lead exhibited rising impedance that was also fluctuating between high and low.Pacing thresholds were also noted to have increased over time.The lead remains in use. no patient complications have been reported as a result of this event.

• Brand Name: ATTAIN OVER THE WIRE LEAD
• Common Device Name: IMPLANTABLE PULSE GENERATOR, PACEMAKER (NON-CRT)
• Manufacturer (Section D): MPRI; road 149 km 56.3; villalba PR 00766
• Manufacturer (Section G): MPRI; road 149 km 56.3; villalba PR 00766
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112-4391 ; 7635269277
• MDR Report Key: 21221261
• Report Number: 2649622-2025-02506
• Device Sequence Number: 3467320
• Product Code: LWP
• UDI-Device Identifier: 00885074200736
• UDI-Public: 00885074200736
• Combination Product (Y/N): N
• Initial Reporter State: MN
• Initial Reporter Country: US
• PMA/510(K) Number: P010015
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2009
• 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,Followup
• Report Date (Section B): 02/07/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 10/01/2010
• Device Model Number: 419388
• Device Catalogue Number: 419388
• 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: 01/13/2025
• Supplement Date Received by Manufacturer: 01/24/2025
• Initial Report FDA Received Date: 01/23/2025
• Supplement Report FDA Received Date: 02/07/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 10/16/2008
• 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
• Concomitant Medical Products and Therapy/Usage Dates: 407652 LEAD, 407645 LEAD
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 78 YR
• Patient Sex: Female