The Association of Transcatheter Aortic Valve Replacement Availability and Hospital Aortic Valve Replacement Volume and Mortality in the United States

This study examined the effect of the introduction of TAVR on overall AVR rates in the US using the STS and STS/ACC registries.  From 2008 to 2013, AVR rates increased at hospitals performing TAVR by 69%, including a 22% increase in surgical AVR; the latter increase was primarily in low- and moderate-risk patients.  In contrast, non-TAVR hospital AVR volume increased by 16%.  Overall survival rates improved during the period in both settings.