MAUDE Adverse Event Report: MEDTRONIC HEART VALVES DIVISION MOSAIC MITRAL BIOPROSTHETIC HEART VALVE; HEART-VALVE, NON-ALLOGRAFT TISSUE

Model Number	310C29
Medical Device Problem Codes	Insufficient Device Problem Information (3190); Patient Device Interaction Problem (4001); Device Stenosis (4066)
Health Effect - Clinical Codes	Endocarditis (1834); Mitral Valve Stenosis (1965); Insufficient Information (4580)
Date of Event	03/03/2025
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 29mm mosaic mitral valve, it was explanted and replaced with a 31mm mosaic mitral valve.The reason for the replacement was not reported.No additional adverse patient effects were reported.
Event or Problem Description
Additional information was received that the reason for replacement was active endocarditis.It was reported that a mean gradient across the valve was 12mmhg and there was significant stenosis.A transesophageal echocardiogram (tee) performed prior to explant noted multiple mobile vegetations on the valve with concern for annular abscess.The cultured organism was streptococcus.No additional adverse patient effects were reported.
Additional Manufacturer Narrative
Medtronic received additional information that changed the event description and device relatedness of this previously reported event.There is no evidence to suggest the device caused or contributed to a death or serious injury.A4, b5 and h6 updated.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: MOSAIC MITRAL BIOPROSTHETIC HEART VALVE
• Common Device Name: HEART-VALVE, NON-ALLOGRAFT TISSUE
• 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: 21643598
• Report Number: 2025587-2025-01985
• Device Sequence Number: 18067542
• Product Code: DYE
• UDI-Device Identifier: 00643169594852
• UDI-Public: 00643169594852
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: P990064
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Device Explanted 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
• Report Date (Section B): 04/07/2025

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: 03/06/2023
• Device Model Number: 310C29
• Device Catalogue Number: 310C29
• 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: 03/11/2025
• Supplement Date Received by Manufacturer: 03/28/2025
• Initial Report FDA Received Date: 03/19/2025
• Supplement Report FDA Received Date: 04/07/2025
• Date Device Manufactured: 03/07/2018
• 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
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 31 YR
• Patient Sex: Female
• Patient Weight: 82 KG