- Chapel Hill, NCDate of first commercial TAVR procedure performed*:Nov, 2014TAVR Total Commercial VolumeCumulative volume since program inception:924Average annual volume for reporting period:12530-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2020 through September 30, 2023Eligible procedures in reporting period:355TAVR 30 Day Composite Score**:0.00( -0.03 , 0.02)0% (-0.03, 0.02)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**