Transcatheter aortic valve implantation using the ACURATE TA and ACURATE neo valves: a four-year single-centre experience.

AIMS: Long-term outcomes are available for first-generation transcatheter heart valves but data on second-generation devices are scarce. We aimed to provide an oversight of all patients implanted with a second-generation valve in our centre.

METHODS AND RESULTS: From April 2012 to July 2016, 219 patients were enrolled in this prospective single-centre experience; they received either the transapical ACURATE TA (n=99) or the transfemoral ACURATE neo (n=120) prosthesis. Data were collected during the hospital stay and telephone follow-ups were conducted at 30 days post procedure and annually thereafter. Patients were 80.9±4.4 years old with a mean logistic EuroSCORE I of 19.3±13.9%. Transapical patients had significantly more comorbidities at baseline. Post intervention, mean gradient was reduced to 10.6±9.2 mmHg, and 1.9% had moderate paravalvular regurgitation. Mean follow-up time, based on the last patient contact, was 217±188 days for the transfemoral and 525±413 days for the transapical group. Thirty-day mortality was 2.5% and 4.0%, and one-year Kaplan-Meier survival was 94.8% (95% CI: 87.5-97.9) and 81.9% (95% CI: 72.0-88.5), respectively. At two years, survival was 64.9% (95% CI: 52.6-74.7) for transapical patients.

CONCLUSIONS: This early single-centre experience showed very good safety and performance outcomes in patients treated with the ACURATE prostheses.