- St. Louis, MODate of first commercial TAVR procedure performed*:Jan, 2016TAVR Total Commercial VolumeCumulative volume since program inception:617Average annual volume for reporting period:12430-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2020 through September 30, 2023Eligible procedures in reporting period:311TAVR 30 Day Composite Score**:0.02( 0.00 , 0.04)0.02% (0, 0.04)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**