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This system analyzes publicly available FDA MAUDE data. It does NOT provide medical advice. MAUDE data is de-identified — do not attempt re-identification. © 2026 Claripulse.

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MAUDE LookupStructural HeartWATCHMAN FLX Pro

WATCHMAN FLX Pro Adverse Events: FDA MAUDE Data

BOSTON SCIENTIFIC CORPORATION · Left Atrial Appendage Closure · First cleared Mar 2015

Total Reports

654

Reports (30d)

42

Active Signals

1

Open Recalls

0

Monthly Report Volume
Event Type Breakdown

What the reports describe · Claripulse analysis

Most commonly reported problems

1

Pericardial Effusion During Procedure

wds, pericardial effusion, pericardial, effusion, occurred

35

reports

2

Thrombus Detected on Follow-Up Imaging

tee, performed watchman, thrombosis, closure procedure, thrombus

20

reports

3

Device Migration with Peri-Device Leak

performed watchman, leak, closure procedure, procedure performed, occurred

19

reports

4

Thromboembolism Death Event

data, terms, single patient, captured separately, event terms

11

reports

5

CVA Post-Implant After Four Years

device implanted, stroke, closure procedure, occurred, discharged

7

reports

6

Device Related Thrombus Detected

related, reported occurred, complications, thrombus, imaging

7

reports

Problem groupings are generated by Claripulse from report narrative text. They summarize what reporters wrote, not adjudicated root cause.

Detection

Active safety signals

Disproportionate reportinghigh

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Understanding this data

What FDA MAUDE data does and does not tell you

How these reports are filed, why raw counts mislead, and the limits to know before drawing conclusions.

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How a safety signal is detected

What the "Active Signals" count above means and the methods that separate a real signal from noise.

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Disclaimer: This system analyzes publicly available FDA MAUDE data. It does NOT provide medical advice. MAUDE data is de-identified. Do not attempt re-identification. Report counts may differ from the FDA's MAUDE search due to processing cadence and deduplication. Data is updated weekly.