MAUDE Database Analysis of Post-Approval Outcomes following Left Atrial Appendage Closure with the Watchman Device.

The American Journal of Cardiology
Pablo A LedesmaJeremy Ruskin

Abstract

Left atrial appendage closure (LAAC) is an important strategy to reduce stroke risk in patients with non-valvular atrial fibrillation (AF) who are at high risk of bleeding on long-term anticoagulation. Real-world assessments of the safety of the Watchman LAAC device remain limited. The objective of this study was to determine the frequency and timing of adverse events associated with Watchman LAAC device implants performed after FDA approval. Adverse events associated with Watchman LAAC implants performed between March 2015 and March 2019 were identified through a search of the FDA Manufacturer and User Facility Device Experience (MAUDE) database. During the study period, 3,652 unique adverse events were identified. An estimated 43,802 Watchman implants were performed in the United States during the study period. The overall adverse event rate was 7.3% and the mortality rate was 0.4%. Of the 159 unique types of adverse events identified, pericardial effusion was most common (1.4%). Most adverse events (73%) occurred intraoperatively (59%) or within 1 day of the procedure (15%). However, 19% of deaths, 24% of strokes and 27% of device embolizations occurred >1 month after implantation. The rates of most Watchman-related adverse ...Continue Reading

References

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