MAUDE Adverse Event Report: HOUSTON LEAD MODEL 303

Model Number	303-30
Medical Device Problem Codes	Low impedance (2285); Electrical Shorting (2926)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/06/2023
Type of Reportable Event	Malfunction
Event or Problem Description
During a periodic programming history database review, low lead impedance was observed to have been seen on (b)(6) /2023 for the patient.Additional information received noting that on 4/2/2025 the impedance corrected to normal and chest x-rays were ordered.On (b)(6) 2025 the x-ray report noted, "vns device projects over the left chest wall and curves up the left neck".The patient will be re-evaluated during their next follow-up visit on (b)(6) 2025.No known surgical intervention has occurred to date.No other relevant information has been received to date.
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.

• Brand Name: LEAD MODEL 303
• Common Device Name: LEAD
• Manufacturer (Section D): HOUSTON; 100 cyberonics boulevard; houston TX 77058
• Manufacturer (Section G): HOUSTON; 100 cyberonics boulevard; suite 600; houston TX 77058
• Manufacturer Contact: cindy scott ; 100 cyberonics blvd; suite 600; houston, TX 77058 ; 2816672681
• MDR Report Key: 22620868
• Report Number: 1644487-2025-10406
• Device Sequence Number: 8932555
• Product Code: LYJ
• UDI-Device Identifier: 05425025750122
• UDI-Public: 05425025750122
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: P970003
• 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
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 07/25/2025

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: 01/25/2022
• Device Model Number: 303-30
• Device Lot Number: 204369
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/01/2025
• Initial Report FDA Received Date: 07/25/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/07/2018
• 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: 24 YR
• Patient Sex: Male