BACKGROUND: Transcatheter aortic valve implantation (TAVI) is a new modality of treatment especially dedicated to patients with high surgical risk. In these patients, TAVI increased survival and improved quality of life when compared to standard treatment (drug therapy with or without percutaneous aortic balloon valvuloplasty). Our objective was to perform a cost-efficacy analysis of the implementation of TAVI in the Brazilian Supplemental Health System. METHODS: We developed a predictive model to assess the cost-effectiveness of the procedure in the long-term, and a Weibull regression analysis with a time horizon of 5 and 10 years, to estimate survival data for over 24 months. In addition, a deterministic sequential Markov model was developed. Results were expressed as incremental cost-effectiveness ratio (ICER) per years of life saved and progression-free years of life. RESULTS: In a standard scenario, where the cost of TAVI was estimated as R$ 65 millions, the ICER value (cost/year of life saved) in 5 years was R$ 72,520.65. When the time horizon was adjusted for 10 years, this amount decreased to R$ 41,653.01. CONCLUSIONS: The model indicated that TAVI has superior effectiveness and higher incremental cost. Furthermore, the incorporation of TAVI in the List of Health Procedures and Events of the Brazilian Supplemental Health System would have an incremental budgetary impact over the next 5 years, ranging from R$ 70 millions to R$ 121 millions, consistent with other technologies which have already been incorporated by the system.
Aortic valve stenosis; Heart valve prosthesis implantation; Bioprosthesis; Catheters; Supplemental Health; Cost-benefit analysis
