MAUDE Adverse Event Report: MEDTRONIC HEART VALVES DIVISION MOSAIC AORTIC BIOPROSTHETIC HEART VALVE; REPLACEMENT HEART-VALVE

Model Number	305C225
Medical Device Problem Code	Patient Device Interaction Problem (4001)
Health Effect - Clinical Codes	Bacterial Infection (1735); Encephalopathy (1833); Hypoxia (1918)
Date of Event	08/16/2025
Type of Reportable Event	Serious Injury
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 post implant of this 25mm aortic bioprosthetic valve, the patient presented to the emergency department with fever, hypoxia, encephalopathy, hypotension and was admitted to the medical intensive care unit.A computed tomography angiography performed showed loculated left empyema and likely adjacent pneumonia.Blood cultures and urine cultures performed, were positive and a transesophageal echocardiography performed reported negative for vegetation.A left thoracostomy tube for empyema drainage was performed and empyema fluid cultures were positive.It was reported that antibiotic and vasopressor medications were given.Subsequently, the patient successfully had an aortic valve-in-valve replacement with a transcatheter valve.No additional adverse patient effects were reported.

• Brand Name: MOSAIC AORTIC BIOPROSTHETIC HEART VALVE
• Common Device Name: REPLACEMENT HEART-VALVE
• Manufacturer (Section D): MEDTRONIC HEART VALVES DIVISION; 1851 e deere ave; santa ana CA 92705
• Manufacturer (Section G): MEDTRONIC HEART VALVES DIVISION; 1851 e deere ave; santa ana CA 92705
• Manufacturer Contact: alison sweeney ; parkmore business park west; galway ; EI ; 091708096
• MDR Report Key: 25314410
• Report Number: 2025587-2026-00572
• Device Sequence Number: 10542267
• Product Code: DYE
• UDI-Device Identifier: 00643169594708
• UDI-Public: (01)00643169594708(17)220711
• Combination Product (Y/N): N
• Initial Reporter State: CT
• Initial Reporter Country: US
• PMA/510(K) Number: P990064
• 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: Study,Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 05/28/2026

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: Health Professional
• Device Expiration Date: 07/11/2022
• Device Model Number: 305C225
• Device Catalogue Number: 305C225
• 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: 05/15/2026
• Initial Report FDA Received Date: 05/28/2026
• Date Device Manufactured: 07/12/2017
• 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
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 84 YR
• Patient Sex: Male
• Patient Weight: 121 KG