- Seattle, WADate of first commercial TAVR procedure performed*:Oct, 2014TAVR Total Commercial VolumeCumulative volume since program inception:857Average annual volume for reporting period:20930-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2020 through September 30, 2023Eligible procedures in reporting period:471TAVR 30 Day Composite Score**:-0.01( -0.03 , 0.01)-0.01% (-0.03, 0.01)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**