- Chattanooga, TNDate of first commercial TAVR procedure performed*:Dec, 2011TAVR Total Commercial VolumeCumulative volume since program inception:743Average annual volume for reporting period:9730-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2019 through September 30, 2022Eligible procedures in reporting period:319TAVR 30 Day Composite Score**:0.05(0.02, 0.07)0.05% (0.02, 0.07)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**