WATCHMAN FLX™ M635WU50200Recalls & reported problems
Boston Scientific Corporation · Left Atrial Appendage Closure Device with Delivery System · Class 3 · Implant
All models of WATCHMAN (25) · WATCHMAN FLX (5)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
Quick summary
This Boston Scientific Watchman FLX device is an implant placed in the heart to close off the left atrial appendage. Its 254 reports often describe fluid around the heart, blood clots, low blood pressure and strokes, with some mentioning the device shifting or leaking. The reports mention 18 deaths and 229 injuries, and reports fell to 5 in the last 12 months from 28 in the 12 months before. No recalls name this device.
AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.
- Adverse event reports
- 254
- Deaths reported
- 18
- Injuries reported
- 229
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 254 adverse event reports that list this exact device (DI 08714729860488), received between Oct 26, 2020 and Sep 17, 2026 — classified as 18 deaths, 229 injuries, 7 malfunctions.
The most frequently reported specific device problem is “Difficult to Open or Close” (17 reports).
2 other recalls cover devices cleared under the same FDA submission (P130013); they may or may not involve this specific model.
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.
Reports received per month
Most reported problems
Device problems
- Adverse Event Without Identified Device or Use Problem209
- Difficult to Open or Close17
- Device Dislodged or Dislocated16
- Detachment of Device or Device Component6
- Migration6
- Failure to Seal4
- Material Integrity Problem3
- Air/Gas in Device1
Patient problems
- Pericardial Effusion88
- No Clinical Signs, Symptoms or Conditions50
- Thrombosis/Thrombus49
- Low Blood Pressure/ Hypotension33
- Cardiac Tamponade29
- Stroke/CVA28
- Cardiac Perforation21
- Transient Ischemic Attack15
Recent adverse event reports
The 25 most recent of 254 reports, in the reporter's own words as published by the FDA.
InjurySep 17, 2026Failure to Seal
It was reported that a stroke occurred.A left atrial appendage closure (LAAC) procedure was performed, and a 20mm WATCHMAN FLX LAA Closure Device was implanted on (b)(6) 2024. The patient was discharged on a regimen of Aspirin and 75mg of Plavix. Computed tomography angiography (CTA) was completed at the routine 45 day follow up. A 4mm leak was noted. Plavix was discontinued. The patient had magnetic resonance imaging (MRI) done on the brain on (b)(6) 2026 and was diagnosed with a stroke. The patient was not taking any antithrombotic medication at the time of the stroke.
Patient problems: Stroke/CVA
MAUDE report 50802942 ↗DeathMar 24, 2026Adverse Event Without Identified Device or Use Problem
IT WAS REPORTED VIA PATIENT CALL CENTER THAT PATIENT DIED. A LEFT ATRIAL APPENDAGE CLOSURE PROCEDURE WAS PERFORMED AND A 20MM WATCHMAN FLX CLOSURE DEVICE WAS IMPLANTED. ELEVEN DAYS LATER, AFTER TAKING A BREATHING TREATMENT AT HOME THE PATIENT STOPPED BREATHING. THE PATIENT'S HUSBAND CALLED 911 AND THE PATIENT DIED AT THE HOSPITAL.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 24680929 ↗InjuryJan 27, 2026Adverse Event Without Identified Device or Use Problem
IT WAS REPORTED THAT THERE WAS A DEVICE RELATED THROMBUS. A LEFT ATRIAL APPENDAGE (LAA) CLOSURE PROCEDURE WAS BEING PERFORMED. A WATCHMAN ACCESS SYSTEM (WAS) AND A 20MM WATCHMAN FLX LAA CLOSURE DEVICE & DELIVERY SYSTEM (WDS) WERE SELECTED TO BE USED. THE PROCEDURE WAS SUCCESSFULLY COMPLETED WITH THE CLOSURE DEVICE IMPLANTED IN THE LAA OF THE PATIENT. THERE WERE NO PATIENT COMPLICATIONS THAT WERE REPORTED TO HAVE OCCURRED. FOUR (4) YEARS POST PROCEDURE THE PATIENT CAME IN FOR AN ABLATION PROCEDURE. IMAGING SHOWED THAT THERE WAS A DEVICE RELATED THROMBUS PRESENT ON THE CLOSURE DEVICE. THE PHYSICIAN PUT THE PATIENT BACK ON ANTICOAGULATION MEDICATION FOR 4-6 MONTHS AND THEN WILL REIMAGE THEM AGAIN. THE PATIENT DID NOT EXPERIENCE ANY COMPLICATIONS AS A RESULT OF THIS EVENT.
Patient problems: Thrombosis/Thrombus
MAUDE report 24194641 ↗InjuryJan 20, 2026Failure to Seal
IT WAS REPORTED THAT A DEVICE LEAK OCCURRED. A LEFT ATRIAL APPENDAGE (LAA) CLOSURE PROCEDURE WAS PERFORMED, AND A 20MM WATCHMAN FLX CLOSURE DEVICE WAS SUCCESSFULLY IMPLANTED ON (B)(6) 2023. THE PATIENT WAS DISCHARGED. ROUGHLY 3 YEARS POST IMPLANT ON (B)(6) 2026, DURING AN ELECTROPHYSIOLOGY PROCEDURE, IT WAS NOTED ON TRANSESOPHAGEAL ECHOCARDIOGRAPHY (TEE) THAT THE PATIENT HAD A 6MM LEAK AROUND THE CLOSURE DEVICE. THE PATIENT HAS NOT EXPERIENCED ANY ADVERSE EVENTS RELATED TO THIS LEAK AND WAS ON PLAVIX AND ASPIRIN. THE LEAK WAS NOTED IN THE 135-180-DEGREE RANGE ON TEE. LOWER ANGLES LOOK WELL OPPOSED. THERE WERE NO PATIENT COMPLICATIONS. NO FURTHER INFORMATION WAS PROVIDED AT THE TIME OF THIS REPORT. IT WAS FURTHER REPORTED THAT THE PATIENT HAS A VARIETY OF OTHER MEDICAL CONCERNS, VASCULAR IS THE MAIN ONE KNOWN OF WITH AN ABDOMINAL AORTIC ANEURYSM (AAA) REPAIR A FEW YEARS BACK. THE PATIENT WILL REMAIN ON ANTICOAGULATION MEDICATION.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 24115732 ↗InjuryJan 12, 2026Adverse Event Without Identified Device or Use Problem
REPORTED VIA CLINICA STUDY. IT WAS REPORTED THAT A TRANSIENT ISCHEMIC ATTACK (TIA) OCCURRED. ON (B)(6) 2021 THE PATIENT UNDERWENT A LEFT ATRIAL APPENDAGE (LAA) CLOSURE PROCEDURE WITH SUCCESSFUL PLACEMENT OF A 20 MM WATCHMAN FLX DEVICE AND DEPLOYED DEVICE DIAMETER OF 15.5 MM. THE PATIENT WAS DISCHARGED THE NEXT DAY ON ASPIRIN (81 MG/DAY) AND RIVAROXABAN (20 MG /DAY). ON (B)(6) 2025, 1569 DAYS POST INDEX PROCEDURE, THE PATIENT PRESENTED TO THE TO THE EMERGENCY ROOM (ER) WITH SYMPTOMS CONCERNING FOR ACUTE CEREBRAL VASCULAR ACCIDENT (CVA) VERSUS TIA. DURING ER VISIT, ELECTROCARDIOGRAM (EKG) WAS PERFORMED WHICH REVEALED NO EVIDENCE OF STEMI OR ISCHEMIA. ON THE SAME DAY, LABS WERE PERFORMED WITH NO HYPOGLYCEMIA METABOLIC DERANGEMENTS. ON PHYSICAL EXAMINATION, THERE WAS NO FOCAL NEUROLOGICAL DEFICITS, SPEECH, MOTOR AND SENSATION WERE INTACT AND ABLE TO AMBULATE WITH A STEADY GAIT. A COMPUTED TOMOGRAPHY (CT) SCAN OF THE HEAD WAS PERFORMED WHICH REVEALED NO ACUTE INTRACRANIAL ABNORMALITIES, HEMORRHAGE OR LARGE TERRITORIAL INFARCT. NEUROLOGY WAS CONSULTED AND RECOMMENDED MAGNETIC RESONANCE IMAGING (MRI) TO RULE OUT ACUTE OR CHRONIC INFRACT. MRI SHOWED NO ACUTE INTRACRANIAL ABNORMALITY. THE C
Patient problems: Transient Ischemic Attack
MAUDE report 24044094 ↗InjuryAug 4, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
REPORTED VIA CLINICAL STUDY. IT WAS REPORTED AN EMBOLIC STROKE OCCURRED. A LEFT ATRIAL APPENDAGE (LAA) CLOSURE PROCEDURE WAS PERFORMED ON (B)(6) 2022, AND A 20MM WATCHMAN FLX CLOSURE DEVICE WAS IMPLANTED WITH COMPLETE LAA SEAL AND DEPLOYED DEVICE DIAMETER OF 18.0 MM. THE PATIENT WAS DISCHARGED THE SAME DAY ON APIXABAN (10 MG/DAY) AND ASPIRIN (81MG/ DAY). ON (B)(6) 2024 (783 DAYS POST-INDEX PROCEDURE), THE PATIENT PRESENTED TO THE EMERGENCY ROOM (ER) AFTER EXPERIENCING SUDDEN LEFT-SIDED WEAKNESS, FACIAL DROOP, AND INVOLUNTARY ARM MOVEMENT WHILE STANDING. SYMPTOMS RESOLVED WITHIN 60-90 SECONDS BUT BRIEFLY RECURRED EN ROUTE TO THE HOSPITAL. THE PATIENT ALSO REPORTED SLURRED SPEECH AND WORD-FINDING DIFFICULTY. REVIEW OF SYSTEMS WAS POSITIVE FOR FACIAL ASYMMETRY, SPEECH DIFFICULTY, AND WEAKNESS. PHYSICAL AND NEUROLOGICAL EXAMS WERE UNREMARKABLE. EKG SHOWED NORMAL SINUS RHYTHM WITH LEFT BUNDLE BRANCH BLOCK. COMPUTED TOMOGRAPHY (CT) HEAD SHOWED NO ACUTE FINDINGS BUT NOTED CHRONIC CHANGES AND LEFT FRONTAL ENCEPHALOMALACIA. CT ANGIOGRAM REVEALED NO LARGE VESSEL OCCLUSION OR ANEURYSM, WITH MODERATE ATHEROSCLEROSIS. MAGNETIC RESONANCE IMAGING (MRI) VISUALASE BRAIN ABLATION SHOWED A RIGHT CERE
Patient problems: Facial Paralysis; Muscle Weakness/Atrophy; Speech Disorder; Stroke/CVA
MAUDE report 22700216 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 SERIOUS INJURY EVENT FOR DEVICE EXPLANTATION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22580480 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 19 SERIOUS INJURY EVENTS FOR CEREBRAL VASCULAR ACCIDENT (CVA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 54 TO 92 YEARS. PATIENT SEX: 9 FEMALES; 10 MALE. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SI
Patient problems: Stroke/CVA
MAUDE report 22580196 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 DEATH EVENT FOR TRANSIENT ISCHEMIC ATTACK (TIA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMA
Patient problems: Transient Ischemic Attack
MAUDE report 22580035 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 4 DEATH EVENTS FOR CEREBRAL VASCULAR ACCIDENT (CVA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 48 TO 83 YEARS. PATIENT SEX: 2 FEMALES; 2 MALES. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT L
Patient problems: Stroke/CVA
MAUDE report 22579676 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 SERIOUS INJURY EVENT FOR THROMBOEMBOLISM. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION PR
Patient problems: Thromboembolism
MAUDE report 22579653 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 SERIOUS INJURY EVENT FOR UNEXPECTED MEDICAL INTERVENTION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA T
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22578489 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 DEATH EVENT FOR SUDDEN CARDIAC DEATH. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION PREVIO
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22578356 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 2 SERIOUS INJURY EVENTS FOR SURGICAL INTERVENTION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMAT
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22578301 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 SERIOUS INJURY EVENT FOR HOSPITALIZATION OR PROLONGED HOSPITALIZATION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22578279 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 2 DEATH EVENTS FOR CEREBRAL VASCULAR ACCIDENT (CVA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORM
Patient problems: Stroke/CVA
MAUDE report 22578116 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 DEATH EVENT FOR HOSPITALIZATION OR PROLONGED HOSPITALIZATION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DAT
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22578055 ↗DeathJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 DEATH EVENT FOR THROMBOEMBOLISM. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION PREVIOUSLY RE
Patient problems: Thromboembolism
MAUDE report 22577754 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 11 SERIOUS INJURY EVENTS FOR TRANSIENT ISCHEMIC ATTACK (TIA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 67 TO 85 YEARS. PATIENT SEX: 6 FEMALE; 5 MALE. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGN
Patient problems: Transient Ischemic Attack
MAUDE report 22577106 ↗InjuryJul 23, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 12 SERIOUS INJURY EVENTS FOR CEREBRAL VASCULAR ACCIDENT (CVA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 61 TO (B)(6) YEARS. PATIENT SEX: 7 FEMALES; 5 MALES. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE A
Patient problems: Stroke/CVA
MAUDE report 22577061 ↗InjuryJul 21, 2025Difficult to Open or Close; Failure to Seal; Difficult to Open or Close; Failure to Seal
THIS REPORT SUMMARIZES 1 SERIOUS INJURY EVENT FOR DEVICE LEAK. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION PREVIOU
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22559286 ↗InjuryJul 21, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 3 SERIOUS INJURY EVENTS FOR HOSPITALIZATION OR PROLONGED HOSPITALIZATION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 83 TO 89 YEARS. PATIENT SEX: 1 FEMALE; 2 MALE. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THE
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22559278 ↗InjuryJul 21, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 11 SERIOUS INJURY EVENTS FOR TRANSIENT ISCHEMIC ATTACK (TIA). NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. AGE RANGE: 56 TO (B)(6) YEARS. PATIENT SEX: 7 FEMALES; 4 MALES. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN SURPASS CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE
Patient problems: Transient Ischemic Attack
MAUDE report 22556390 ↗InjuryJul 21, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 4 SERIOUS INJURY EVENTS FOR THROMBOSIS. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. OF THE REPORTED 4 SERIOUS INJURY THROMBOSIS EVENTS: 1 WAS AN ATRIAL THROMBUS 2 WERE LATE DEVICE THROMBOSIS (30 DAYS - 1 YEAR POST IMPLANT). 1 WAS A VERY LATE DEVICE THROMBOSIS (MORE THAN 1 YEAR POST IMPLANT). AGE RANGE: 56 TO 79 YEARS PATIENT SEX: 2 FEMALE; 2 MALE TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIE
Patient problems: Thrombosis/Thrombus
MAUDE report 22555597 ↗DeathJul 21, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THIS REPORT SUMMARIZES 1 DEATH EVENT FOR UNSPECIFIED INFECTION. NOTE THAT MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT BUT ARE CAPTURED SEPARATELY UNDER REPORTING GUIDELINES. DEVICE RELATIONSHIP TO THE EVENTS REPORTED IS NOT PROVIDED. TYPE OF PROCEDURE: LEFT ATRIAL APPENDAGE CLOSURE. BOSTON SCIENTIFIC RECEIVED NOTIFICATION OF EVENTS FOR THE WATCHMAN LAAC DEVICE REPORTED IN THE LEFT ATRIAL APPENDAGE OCCLUSION REGISTRY (LAAO) REGISTRY, WATCHMAN FLX DAPT CLINICAL STUDY TO ASSESS LONG-TERM SAFETY AND EFFECTIVENESS OUTCOMES ASSOCIATED WITH THE USE AND IMPLANTATION OF THE WATCHMAN FLX LEFT ATRIAL APPENDAGE (LAA) CLOSURE DEVICE WITH DELIVERY SYSTEM IN A ROUTINE CLINICAL SETTING. PATIENT EVENTS WERE REPORTED AS EVENT TERMS WITH NO FURTHER DETAILED INFORMATION. MULTIPLE EVENT TERMS MAY APPLY TO A SINGLE PATIENT, BUT ARE CAPTURED SEPARATELY UNDER THE TERMS OF THE SUMMARY REPORTING GUIDELINES. DATA INCLUDES NEWLY IMPLANTED PATIENTS AND FOLLOW UP OF PATIENTS INCLUDED IN THE PREVIOUS DATA SET. UNDER THE TERMS AND CONDITIONS OF THE REGISTRY, DATA IS ANONYMIZED BEFORE BEING TRANSMITTED TO BSC, THUS THERE ARE SIGNIFICANT LIMITATIONS TO BSC'S ABILITY TO CORRELATE THE DATA TO INFORMATION PREVI
Patient problems: Unspecified Infection
MAUDE report 22555506 ↗
Recalls under the same FDA submission
These recalls involve devices cleared under P130013. One submission often covers many models, so check the product and lot details in each record.
- Z-2765-2015 · Aug 25, 2015 · TerminatedBoston Scientific, WATCHMAN Left Atrial Appendage Closure Device with Delivery System, 21mm x 12F ( M635WU21060, WU21060, 24mm x 12F(M635WU24060, WU2406) , 27mm x 12F(M635WU27060,
- Z-2766-2015 · Aug 25, 2015 · TerminatedBoston Scientific, WATCHMAN Access System Access Sheath with Dilator, 14F Single curve( M635TU10060, TU1006) , 14F Double curve (M635TU20060, TU2006) , & 14F Anterior curve (M635
Other System, appendage closure, left atrial devices
- WATCHMAN FLX™ M635WU50270Boston Scientific Corporation · System, appendage closure, left atrial43 deaths731 reports
- WATCHMAN® Access System M635TU20060Boston Scientific Corporation · System, appendage closure, left atrial27 deaths634 reports
- WATCHMAN FLX™ M635WU50240Boston Scientific Corporation · System, appendage closure, left atrial51 deaths606 reports
- WATCHMAN FLX™ Pro M635WU60270Boston Scientific Corporation · System, appendage closure, left atrial57 deaths596 reports
- WATCHMAN® M635WU27060Boston Scientific Corporation · System, appendage closure, left atrial45 deaths483 reports
- Amplatzer™ Amulet™ 9-ACP2-010-025St. Jude Medical, Inc. · System, appendage closure, left atrial43 deaths479 reports
- WATCHMAN FLX™ M635WU50310Boston Scientific Corporation · System, appendage closure, left atrial29 deaths458 reports
- WATCHMAN FLX™ Pro M635WU60310Boston Scientific Corporation · System, appendage closure, left atrial46 deaths452 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 18, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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