MAUDE Adverse Event Report: LIVANOVA CANADA CORP. CROWN PRT PERICARDIAL HEART VALVE; TISSUE HEART VALVE

Model Number	CNA21
Medical Device Problem Code	Calcified (1077)
Health Effect - Clinical Code	Calcium Deposits/Calcification (1758)
Date of Event	01/08/2020
Type of Reportable Event	Serious Injury
Event or Problem Description
The manufacturer was notified that on (b)(6) 2020 a patient with a crown cna21 received a re-operation due to calcification and the device was explanted.The report indicated the valve was implanted for 3 years but there is no indication of the exact date when the device was implanted.The patient is receiving dialysis.
Additional Manufacturer Narrative
The manufacturing and material records for the crown prt aortic pericardial heart valve, model # cna21, s/n(b)(6) , as they pertain to the reported event, were retrieved and reviewed by quality engineering at livanova canada corp.The results confirmed that this valve satisfied all material, visual, and performance standards required for a crown prt aortic pericardial heart valve at the time of manufacture and release.Gross/visual examination of the valve was performed.All the leaflets were stiff due to intrinsic and vegetating calcifications.Whitish and yellowish areas due to tissue alterations were detected on both prosthetic sides.The mesothelial surfaces of all leaflets were locally wrinkled.Mesothelial delaminations were visible on almost all surfaces.This anayslsis revealed a deformed prosthesis due to intrinsic calcifications in all leaflets.There was pannus overgrowth on the inflow sewing ring of the valve.An x-ray analysis was performed, and x-rays of the subject valve showed intrinsic calcifications in all leaflets.Histo-morphological analysis was performed.Histological analysis showed the presence of lipid infiltration (cholesterol clefts) in the pericardial tissue.This lipid infiltration may contribute to localized leaflet stiffness.Histological analysis also identified inflammatory cells throughout the sample.It is possible that the patient¿s clinical conditions and risk factors (dialysis) may have contributed to the structural valve deterioration observed in this crown valve.Aortic insufficiency likely resulted from inadequate leaflets coaptation caused by calcification of the leaflets.There was no evidence of endocarditis in the returned valve.Structural dysfunction is the major cause of failure of bioprosthetic heart valves and the principal underlying pathologic process is cuspal calcification.Calcification can also cause stenosis due to cuspal stiffening.Calcific deposits are usually localized to cuspal tissue (intrinsic calcification).At this time the root cause is thus deemed to be a known inherent risk of device.

• Brand Name: CROWN PRT PERICARDIAL HEART VALVE
• Common Device Name: TISSUE HEART VALVE
• Manufacturer (Section D): LIVANOVA CANADA CORP.; 5005 north fraser way; burnaby, bc
• MDR Report Key: 9684706
• Report Number: 1718850-2020-00012
• Device Sequence Number: 19686796
• Product Code: LWR
• UDI-Device Identifier: 00896208000511
• UDI-Public: (01)00896208000511(240)CNA21(17)180228
• Combination Product (Y/N): N
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2020
• Reporter Type: Importer
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 03/18/2020
• Report Date (Section F): 01/09/2020

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: 02/28/2018
• Device Model Number: CNA21
• Device Catalogue Number: CNA21
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/24/2020
• Was the Report Sent to FDA?: No
• Distributor Facility Aware Date: 01/09/2020
• Device Age: 3 YR
• Event Location: Hospital
• Date Report to Manufacturer: 01/09/2020
• Initial Date Received by Manufacturer: Not provided
• Supplement Date Received by Manufacturer: 01/09/2020
• Initial Report FDA Received Date: 02/07/2020
• Supplement Report FDA Received Date: 03/18/2020
• 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
• Patient Age: 71 YR