Impact of treatment choice on the outcome of patients proposed for transcatheter aortic valve implantation

Marco De Carlo, Cristina Giannini, Federica Ettori, Claudia Fiorina, Fabio Guarracino, Salvatore Curello, Giovanni Scioti, Gaetano Minzioni, Giuliano Chizzola, Diego Matteo, A Sonia Petronio
EuroIntervention 2010, 6 (5): 568-74

AIMS: Transcatheter aortic valve implantation (TAVI) is a new option for patients with severe aortic stenosis at high surgical risk. We compared the clinical outcome of patients referred for TAVI and subsequently treated with TAVI, surgical aortic valve replacement (SAVR), balloon aortic valvuloplasty (BAV), or medical management (MM).

METHODS AND RESULTS: All consecutive patients (n=166, EuroSCORE 24.9 ± 13.9%) referred for TAVI to our two centres were enrolled in a prospective registry and were assigned to SAVR (n=21), TAVI with the CoreValve prosthesis (n=75), BAV (n=20), or MM (n=50) by a multi-specialty team. The primary endpoint was 6-month cardiac mortality. Patients undergoing BAV had a significantly higher EuroSCORE (33.6 ± 15.9%; p=0.01). Median follow-up time was nine months (interquartile range 4.5-12.4 months). Six-month freedom from cardiac death was 81.0 ± 8.6%, 92.0 ± 3.1%, 72.9 ± 10.5%, and 72.7 ± 6.5% for SAVR, TAVI, BAV, and MM groups, respectively. Freedom from major cardiac and cerebrovascular events was 76.2 ± 9.3%, 83.9 ± 4.3%, 72.9 ± 10.5%, and 65.6 ± 6.8% for SAVR, TAVI, BAV, and MM groups, respectively.

CONCLUSIONS: With respect to medical management and BAV, TAVI was associated with lower cardiac mortality at six months. Clinical outcome after TAVI was similar to that of less sick patients undergoing SAVR.

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