Nat. Rev. Cardiol. doi:10.1038/nrcardio.2017.82 Figure 2 All-cause mortality in pivotal TAVI/SAVR studies grouped by risk category Figure 2 | All-cause mortality in pivotal TAVI/SAVR studies grouped by risk category. Cumulative all-cause mortality (%) over time is shown for the pivotal studies comparing transcatheter aortic valve implantation (TAVI) to medical therapy in inoperable patients and TAVI versus surgical aortic valve replacement (SAVR) for high, intermediate, and low-risk patients in various other cohorts. Mortality is represented at 30-days, 1-year, 2-years, and 5-years when available. The graph shows that as TAVI has been extended to lower risk cohorts, overall mortality has dropped considerably. *81.8% of patients are low risk, with a mean Society of Thoracic Surgeons score of 3.0% for the overall cohort. Jones, B. M. et al. (2017) Matching patients with the ever-expanding range of TAVI devices Nat. Rev. Cardiol. doi:10.1038/nrcardio.2017.82