MAUDE Adverse Event Report: Medtronic Puerto Rico Villalba Attain Stability Quad MRI SureScan; DRUG ELUTING PERMANENT LEFT VENTRICULAR (LV) P

Model Number	479878
Medical Device Problem Code	Extracardiac stimulation (1463)
Health Effect - Clinical Code	Inappropriate Device Stimulation of Tissue (4928)
Date of Event	07/16/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that the patient experienced palpitations and thumping in her chest.Phrenic nerve stimulation was confirmed.The lv lead polarity was reprogrammed.The phrenic nerve stimulation was resolved.The lv lead remains in use and will continue to be monitored.No further patient complications have been reported as a result of this event.The patient is a participant in a clinical study.
Additional Manufacturer Narrative
Continuation of d10: dtpa2qq crt-d implanted: (b)(6 )2026 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: Attain Stability Quad MRI SureScan
• Common Device Name: DRUG ELUTING PERMANENT LEFT VENTRICULAR (LV) P
• 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--439 ; +1(763)526-9277
• MDR Report Key: 50331133
• Report Number: 2649622-2026-24544
• Device Sequence Number: 20271261
• Product Code: OJX
• UDI-Device Identifier: 00643169860414
• UDI-Public: (01)00643169860414(17)230723
• Combination Product (Y/N): N
• Initial Reporter State: NM
• Initial Reporter Country: US
• PMA/510(K) Number: P080006
• 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: Study,Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 08/19/2026

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?: No
• Operator of Device: Lay User/Patient
• Device Expiration Date: 07/23/2023
• Device Model Number: 479878
• Device Catalogue Number: 479878
• 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: Not provided
• Initial Report FDA Received Date: 08/19/2026
• Date Device Manufactured: 08/19/2021
• 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: 6935M55 LEAD, 457445 LEAD
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 71 YR
• Patient Sex: Female
• Patient Weight: 179 LB
• Patient Race: White