- Lewiston, MEDate of first commercial TAVR procedure performed*:Sep, 2015TAVR Total Commercial VolumeCumulative volume since program inception:437Average annual volume for reporting period:5930-Day Risk Adjusted TAVR Composite 1,2,3Reporting Period:October 1, 2019 through September 30, 2022Eligible procedures in reporting period:216TAVR 30 Day Composite Score**:-0.01(-0.05, 0.02)-0.01% (-0.05, 0.02)Site ScoreSite Credible IntervalTVT RangeTVT Average ScoreTAVR 30-Day Composite Rating**