MAUDE Adverse Event Report: LIVANOVA USA, INC. SYMMETRY GEN MODEL 8103; GENERATOR

Model Number	8103
Medical Device Problem Codes	High impedance (1291); Incomplete or Inadequate Connection (4037)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/01/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Livanova usa, inc.Submits this report to comply with 21 c.F.R.Part 803, the medical device reporting regulation, based on information that livanova has obtained, but may not have been able to investigate or verify prior to the date the report was required by the fda.This report does not constitute an admission, or a conclusion by fda or anyone else, that the device, livanova, or livanova's employees caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any "defects¿ or "malfunctions¿.These words are incorporated into the fda 3500a medwatch form by the fda, and livanova objects to their use.
Event or Problem Description
It was reported that the patient was seen in clinic with high impedance shortly after a car accident.No known relevant surgical intervention has occurred to date.No other relevant information has been received to date.
Event or Problem Description
Additional information was received that there was no blunt force trauma to the generator site.
Event or Problem Description
Additional information received noting that the patient underwent surgery and once the lead pin was removed and then reinserted, the lead impedance was within normal limits.The generator was then tested with a test resistor and the impedance was within normal limits, 4000 ohms ruling out a generator issue.The generator was then reconnected to the lead and the impedance remained within normal limits.No devices were replaced since the high impedance resolved by reinserted and securing the lead pin.

• Brand Name: SYMMETRY GEN MODEL 8103
• Common Device Name: GENERATOR
• Manufacturer (Section D): LIVANOVA USA, INC.; 100 cyberonics boulevard; suite 600; houston TX 77058
• Manufacturer (Section G): LIVANOVA USA, INC.; 100 cyberonics blvd; suite 600; houston TX 77058
• Manufacturer Contact: cindy scott ; 100 cyberonics blvd; suite 600; houston, TX 77058 ; 2816672681
• MDR Report Key: 23896303
• Report Number: 1644487-2025-11005
• Device Sequence Number: 4552478
• Product Code: MUZ
• UDI-Device Identifier: 05425025750504
• UDI-Public: 05425025750504
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: P970003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 05/19/2026

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: 02/27/2026
• Device Model Number: 8103
• Device Lot Number: 206223
• 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: 12/01/2025
• Supplement Date Received by Manufacturer: 03/20/2026; 04/27/2026
• Initial Report FDA Received Date: 12/26/2025
• Supplement Report FDA Received Date: 04/07/2026; 05/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/11/2024
• 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
• Patient Age: 59 YR
• Patient Sex: Female