Conclusion:
In conclusion, in this large, nationally representative sample of a United States database, there has been a significant increase in the use of Watchman devices since FDA approval in 2015. Between 2015 and 2017, a significantly reduced rate of procedural complications and in-hospital mortality was noted, which appeared primarily driven by reduction in cardiovascular and neurological complications. In later years, length of stay shortened and costs of hospitalization for the procedure decreased.