Marquis-Gravel G, Stebbins A, Kosinski AS, et al. - Researchers performed this observational study to define the current geographic access to transcatheter aortic replacement (TAVR) centers in the US. For this purpose, United States census data were utilized. Median driving distance to a TAVR center was considered as the main outcome and measure. They found that 1,232,568 of 47,527,537 people 65 years and older resided in a zip code with a TAVR center, and 43,789,169 (92.1%) resided in a hospital referral region having a TAVR center. The median driving time to implanting center was estimated to be 35.0 minutes for people who had a successful TAVR. TAVR services are shown to have significant penetration in the context of the US health care system where specialized care is centralized.