Procedural Pattern, Clinical Outcomes, and Cost Analysis of Transcatheter Aortic Valve Replacement in Korea

Figures

• 

  Figure 1. Data Integration Schematic This schematic represents the integration of three datasets: 1) Health Insurance Review and Assessment (HIRA): Transcatheter Aortic Valve Replacement (TAVR) registry, detailing procedures linked by the resident registration number (RRN); 2) HIRA: Medical Expense Record, categorizing the costs associated with each medical service; and 3) National Health Insurance Services (NHISS): All-cause mortality, indicating instances of loss of eligibility and their dates. The central integrated data record (red box) combines data from these sources using the RRN as a key identifier. For security purposes, RRNs are encrypted within the integrated dataset to ensure confidentiality and protection of personal information while facilitating comprehensive data analysis. STS = Society of Thoracic Surgeons. Costs are presented in US Dollars (USD).

• 

  Figure 2. Number of TAVR Procedures in Korea Annual number of TAVR procedures performed in Korea from 2015 to 2020. Abbreviations as in Figure 1.

• 

  Figure 3. Number of TAVR Centers in Korea Number of nationally certified centers for TAVR in Korea from 2015 to 2021. Abbreviations as in Figure 1.

• 

  Figure 4. Five-Year Event Curves of All-Cause Mortality Kaplan-Meier cumulative event curves for 1 month, 2-year, and 5-year all-cause mortality.

• 

  Figure 5. Two-Year and 5-Year Event Curves of Re-Admission Rate for Cardiac Cause Kaplan-Meier cumulative event curves for 2-year and 5-year re-admission rate for cardiac causes.

• 

  Central Illustration. Use of TAVR in Korea Substantially Increased Between 2015 and 2020 Although transcatheter aortic valve replacement (TAVR) use led to favorable outcomes, its high costs, primarily due to device expenses, introduce challenges in the Korean health care system.