Results:
A total of 17,700 patients underwent Watchman implantation during the
study period. There was a significantly increased trend in the number of
Watchman procedures performed over the study years (from 1,195 in 2015
to 11,165 devices in 2017, p < 0.01). A significant decline in
the rate of complications (from 26.4% in 2015 to 7.9% in 2017, p
< 0.01) and inpatient mortality (from 1.3% in 2015 to 0.1%
in 2017, p < 0.01) were noted. Predictors of in-hospital
mortality included a higher CHA₂DS₂-VASc score (OR 2.61 per 1-point
increase, 95% CI 1.91-3.57), chronic blood loss anemia (OR 3.63, 95%
CI 1.37-9.61) and coagulopathy (OR 4.90, 95% CI 2.32-10.35).