- Burlington, VTDate of first commercial TAVR procedure performed*:Jan, 2014TAVR Total Commercial VolumeCumulative volume since program inception:1979Average annual volume for reporting period:28530-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2020 through September 30, 2023Eligible procedures in reporting period:817TAVR 30 Day Composite Score**:0.00( -0.02 , 0.01)0% (-0.02, 0.01)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**