MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION WATCHMAN LAA CLOSURE DEVICE & DELIVERY SYSTEM; SYSTEM, APPENDAGE CLOSURE, LEFT ATRIAL

Model Number	10371
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Thrombosis/Thrombus (4440)
Date of Event	01/12/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that thrombosis occurred.A left atrial appendage (laa) closure procedure was performed, and a 27mm watchman laa closure device was implanted.The patient was discharged on eliquis 5mg twice a day.The patient followed this regimen until eliquis was removed and dual antiplatelet therapy was added.The patient was to be cardioverted, and pre-transesophageal echocardiography (tee) performed 1129 days post implant procedure showed a laminar, non-mobile, device related thrombus on the face of the closure device.The patient was placed back on xarelto in response to the thrombus and is expected to fully recover.

• Brand Name: WATCHMAN LAA CLOSURE DEVICE & DELIVERY SYSTEM
• Common Device Name: SYSTEM, APPENDAGE CLOSURE, LEFT ATRIAL
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; two scimed place; maple grove MN 55311
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; ballybrit business park; galway ; EI
• Manufacturer Contact: jay johnson ; 4100 hamline ave n; arden hills, MN 55112 ; 6515810888
• MDR Report Key: 16313569
• Report Number: 2124215-2023-04976
• Device Sequence Number: 5759439
• Product Code: NGV
• UDI-Device Identifier: 08714729838241
• UDI-Public: 08714729838241
• Combination Product (Y/N): N
• Initial Reporter State: GA
• Initial Reporter Country: US
• PMA/510(K) Number: P130013
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 02/07/2023

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: 03/12/2022
• Device Model Number: 10371
• Device Catalogue Number: 10371
• Device Lot Number: 0023480353
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/24/2023
• Initial Report FDA Received Date: 02/07/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 03/13/2019
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Age: 81 YR
• Patient Sex: Female