1. Transcatheter Aortic Valve Replacement in Low-Population Density Areas: Assessing Healthcare Access for Older Adults With Severe Aortic Stenosis.
- Author
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Damluji AA, Fabbro M 2nd, Epstein RH, Rayer S, Wang Y, Moscucci M, Cohen MG, Carroll JD, Messenger JC, Resar JR, Cohen DJ, Sherwood MW, O'Connor CM, and Batchelor W
- Subjects
- Age Factors, Aged, Aged, 80 and over, Aortic Valve Stenosis mortality, Catchment Area, Health, Databases, Factual, Female, Florida, Hospital Mortality trends, Humans, Male, Population Density, Residence Characteristics, Retrospective Studies, Severity of Illness Index, Time Factors, Transcatheter Aortic Valve Replacement adverse effects, Transcatheter Aortic Valve Replacement mortality, Travel trends, Treatment Outcome, Aortic Valve Stenosis surgery, Health Services Accessibility trends, Healthcare Disparities trends, Rural Health Services trends, Transcatheter Aortic Valve Replacement trends
- Abstract
Background: Restricting transcatheter aortic valve replacement (TAVR) to centers based on volume thresholds alone can potentially create unintended disparities in healthcare access. We aimed to compare the influence of population density in state of Florida in regard to access to TAVR, TAVR utilization rates, and in-hospital mortality., Methods and Results: From 2011 to 2016, we used data from the Agency for Health Care Administration to calculate travel time and distance for each TAVR patient by comparing their home address to their TAVR facility ZIP code. Travel time and distance, TAVR rates, and mortality were compared across categories of low to high population density (population per square miles of land). Of the 6531 patients included, the mean (SD) age was 82 (9) years, 43% were female and 91% were White. Patients residing in the lowest category (<50/square miles) were younger, more likely to be men, and less likely to be a racial minority. Those residing in the lowest category density faced a longer unadjusted driving distances and times to their TAVR center (mean extra distance [miles]=43.5 [95% CI, 35.6-51.4]; P <0.001; mean extra time (minutes)=45.6 [95% CI, 38.3-52.9], P <0.001). This association persisted regardless of the methods used to determine population density. Excluding uninhabitable land, there was a 7-fold difference in TAVR utilization rates in the lowest versus highest population density regions (7 versus 45 per 100 000, P -for-pairwise-comparisons <0.001) and increase in TAVR in-hospital mortality (adjusted OR, 6.13 [95% CI, 1.97-19.1]; P <0.001)., Conclusions: Older patients living in rural counties in Florida face (1) significantly longer travel distances and times for TAVR, (2) lower TAVR utilization rates, and (3) higher adjusted TAVR mortality. These findings suggest that there are trade-offs between access to TAVR, its rate of utilization, and procedural mortality, all of which are important considerations when defining institutional and operator requirements for TAVR across the country.
- Published
- 2020
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