MAUDE Adverse Event Report: MEDTRONIC PUERTO RICO VILLALBA SUBCUTANEOUS, UNIPOLAR LEAD; IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)

Model Number	6996SQ58
Medical Device Problem Codes	Impedance Problem (2950); Unstable Impedance (4085)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/19/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that the right ventricular (rv) lead exhibited a spike in defibrillation coil impedance.A second subcutaneous lead in the superior vena cava (svc) also exhibited a spike in defibrillation coil impedance.The leads remain in use. no patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Continuation of d10: 407652 lead implanted (b)(6) 2015; dtma1qq crt-d implanted (b)(6) 2020.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
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 further reported that the defibrillation and svc impedance alerts were turned off.It was also noted that the subcutaneous lead was inactivated.
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.
Event or Problem Description
It was further reported that subcutaneous lead impedances were variable and the lead was capped.After the lead was capped it was noted that the rv lead defibrillation impedances remained higher than expected.

• Brand Name: SUBCUTANEOUS, UNIPOLAR LEAD
• Common Device Name: IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)
• Manufacturer (Section D): MEDTRONIC PUERTO RICO VILLALBA; road 149 km 56.3; villalba PR 00766
• Manufacturer (Section G): MEDTRONIC PUERTO RICO VILLALBA; 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: 24034528
• Report Number: 2649622-2026-00812
• Device Sequence Number: 15777056
• Product Code: LWS
• UDI-Device Identifier: 00613994568021
• UDI-Public: (01)00613994568021(17)200803
• Combination Product (Y/N): N
• Initial Reporter State: WI
• Initial Reporter Country: US
• PMA/510(K) Number: P920015
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2020
• Device Explanted Year: 2026
• 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,Followup
• Report Date (Section B): 04/27/2026

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: 08/03/2020
• Device Model Number: 6996SQ58
• Device Catalogue Number: 6996SQ58
• 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: 12/19/2025
• Supplement Date Received by Manufacturer: 01/12/2026; 04/02/2026
• Initial Report FDA Received Date: 01/12/2026
• Supplement Report FDA Received Date: 01/27/2026; 04/27/2026
• Date Device Manufactured: 08/12/2016
• 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: 429888 LEAD, 6935M62 LEAD
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 73 YR
• Patient Sex: Male