- Worcester, MADate of first commercial TAVR procedure performed*:Dec, 2013TAVR Total Commercial VolumeCumulative volume since program inception:867Average annual volume for reporting period:15630-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2019 through September 30, 2022Eligible procedures in reporting period:418TAVR 30 Day Composite Score**:0.03(0.01, 0.05)0.03% (0.01, 0.05)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**