MAUDE Adverse Event Report: MEDTRONIC PUERTO RICO VILLALBA SPRINT QUATTRO SECURE S MRI SURESCAN; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER

Model Number	6935M72
Medical Device Problem Codes	Signal Artifact/Noise (1036); Over-Sensing (1438); Low impedance (2285); Decreased Sensitivity (2534); Impedance Problem (2950)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/23/2025
Type of Reportable Event	Malfunction
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 reported that the right ventricular (rv) lead exhibited a drop in r-waves and began to exhibit low pacing impedance at random post-left ventricular assist device (lvad) implant.Noise was observed on a presenting electrogram and a lead integrity alert (lia) had triggered due to short ventricular intervals and pacing impedance variation.These observations plus large lvad motor noise on electrograms (egm) were potentially due to electromagnetic interference with the implantable cardioverter defibrillator (icd).The rv lead and icd remain in use. no patient complications have been reported as a result of this event.
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 pacing lead was below the expected lower range.Analysis of the device memory indicated the impedance trend of the right ventricular pacing lead was decreasing.Analysis of the device memory indicated emi.Analysis of the device memory indicated oversensing due to non-physiologic signals/sensing integrity counter.Analysis of the device memory indicated diminished right ventricular sensing.Analysis of the device memory observed noise on the electrogram waveforms.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: SPRINT QUATTRO SECURE S MRI SURESCAN
• Common Device Name: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER
• 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: 23391935
• Report Number: 2649622-2025-30068
• Device Sequence Number: 13248096
• Product Code: LWS
• UDI-Device Identifier: 00643169550919
• UDI-Public: (01)00643169550919(17)221023
• Combination Product (Y/N): N
• Initial Reporter State: CO
• Initial Reporter Country: US
• PMA/510(K) Number: P920015
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• 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): 11/18/2025

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: 10/23/2022
• Device Model Number: 6935M72
• Device Catalogue Number: 6935M72
• 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: 10/06/2025
• Supplement Date Received by Manufacturer: 10/28/2025
• Initial Report FDA Received Date: 10/27/2025
• Supplement Report FDA Received Date: 11/18/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 11/12/2020
• 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: DDPB3D4 ICD, 5076-58 LEAD
• Patient Age: 60 YR
• Patient Sex: Male