MAUDE Adverse Event Report: MPRI SUBCUTANEOUS, UNIPOLAR LEAD; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER

Model Number	6996SQ58
Medical Device Problem Codes	Low impedance (2285); Impedance Problem (2950)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/02/2024
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the the subcutaneous defibrillation coil lead exhibited a decrease in impedance to low levels.Impedance alerts were disabled.A gradual decrease in pacing impdeance on the right ventricular (rv) lead was also noted.Both leads remain in use. no patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Continuation of d10: 672625 adaptor implanted (b)(6) 2024; 459888 lead implanted (b)(6) 2018; 5076-58 lead implanted (b)(6) 2017; 5076-52 lead implanted (b)(6) 2017.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
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 right ventricular defibrillation coil was below the expected lower range.Analysis of the device memory indicated the impedance trend of the right ventricular defibrillation conductor was decreasing.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: SUBCUTANEOUS, UNIPOLAR LEAD
• Common Device Name: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER
• 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: paula bixby ; 8200 coral sea st ne; mounds view, MN 55112 ; 7635055378
• MDR Report Key: 19166746
• Report Number: 2649622-2024-11224
• Device Sequence Number: 12726665
• Product Code: LWS
• UDI-Device Identifier: 00643169541177
• UDI-Public: 00643169541177
• Combination Product (Y/N): N
• Initial Reporter State: TX
• Initial Reporter Country: US
• PMA/510(K) Number: P920015
• 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,Followup
• Report Date (Section B): 05/16/2024

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 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: 04/03/2024
• Supplement Date Received by Manufacturer: 04/29/2024
• Initial Report FDA Received Date: 04/23/2024
• Supplement Report FDA Received Date: 05/16/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/11/2024
• 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
• Concomitant Medical Products and Therapy/Usage Dates: DTPA2Q1 CRT-D
• Patient Age: 76 YR
• Patient Sex: Male