Experiencia de 7 años con la protesis aortica de rápido despliegue Edwards Intuity

Abstract

IntroductionRapid deployment aortic valves appeared ten years ago to treat aortic stenosis. The Edwards Intuity Valve System is a biological prosthesis based on the Edwards Magna valve with an infra-annular framework. We present the short and long-term clinical and hemodynamic results obtained with this biological prosthesis. MethodsOne hundred seventeen patients (65% male, 75±4.5 years) with aortic stenosis (mean preoperative gradient of 49.6±12mm Hg) received an Edwards Intutiy prosthesis between September 2012 and December 2019. They were included in a prospective data base that collected different variables. The mean follow-up was 36±21 months. ResultsHospital mortality of 3.4%. Survival at one, three and six years of 95%, 90% and 81%, respectively. Upper hemisternotomy was used in 78 patients (67%). The median times of myocardial ischemia and extracorporeal circulation for the entire series were 40 (33-50) minutes and 59 (48-73) minutes. Average gradients at discharge, one year and two years were 10±4mm, 9±3.5mm and 8.4±3.4mmHg. Eight patients (7%) required pacemakers in the postoperative period. Two patients (0.6%) underwent surgery for endocarditis and another (0.3%) underwent surgery for periprosthetic leak. ConclusionThe Edwards Intutiy valve system presents good short and long term clinical and hemodynamic results. These aortic prostheses can be considered an alternative to conventional prostheses, especially in minimal access surgery and in complex interventions.