MAUDE Adverse Event Report: MEDTRONIC PUERTO RICO OPERATIONS CO. Viva¿ XT CRT-D; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CARDIAC RESYNCHRONIZATIO

Model Number	DTBA1D4
Medical Device Problem Codes	Electromagnetic Interference (1194); Over-Sensing (1438); Inappropriate/Inadequate Shock/Stimulation (1574)
Health Effect - Clinical Code	Shock from Patient Lead(s) (3162)
Date of Event	07/08/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that oversensing was noted on the implantable cardioverter defibrillator's (icd) atrial and ventricular channels due to electromagnetic interference.The patient received high voltage therapies due to the oversensing.The icd remains in use.  no further patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Continuation of d10: 4968-35 lead implanted (b)(6) 2018.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: Viva¿ XT CRT-D
• Common Device Name: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CARDIAC RESYNCHRONIZATIO
• Manufacturer (Section D): MEDTRONIC PUERTO RICO OPERATIONS CO.; road 31, km. 24, hm 4; ceiba norte industrial park; juncos PR 00777
• Manufacturer (Section G): MEDTRONIC PUERTO RICO OPERATIONS CO.; road 31, km. 24, hm 4; ceiba norte industrial park; juncos PR 00777
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112--439 ; +1(763)526-9277
• MDR Report Key: 50060112
• Report Number: 3004209178-2026-12483
• Device Sequence Number: 9349301
• Product Code: NIK
• UDI-Device Identifier: 00643169929302
• UDI-Public: (01)00643169929302(17)190314
• Combination Product (Y/N): N
• Initial Reporter State: MN
• Initial Reporter Country: US
• PMA/510(K) Number: P010031
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2018
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Type of Report: Initial,Followup
• Report Date (Section B): 09/30/2026

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: 03/14/2019
• Device Model Number: DTBA1D4
• Device Catalogue Number: DTBA1D4
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/09/2026
• Supplement Date Received by Manufacturer: 09/30/2026
• Initial Report FDA Received Date: 07/28/2026
• Supplement Report FDA Received Date: 09/30/2026
• Date Device Manufactured: 09/18/2017
• 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, 407645 LEAD
• Outcome Attributed to Adverse Event: Life Threatening
• Patient Age: 55 YR
• Patient Sex: Female