CARPENTIER-EDWARDS Pericardial Aortic Bioprosthesis
Medtronic Bioprostheses for Replacement of Aortic …
– (A) Coronary protection with guide wire to facilitate access and stent placement in case of coronary obstruction after aortic valve transcatheter implantation for the treatment of bioprosthesis dysfunction. (B) Interaction between the guide wire and the transcatheter heart valve.
Edwards aortic pericardial bioprosthesis.
This study described the initial experience of a multidisciplinary group with transcatheter VIV implantation for the treatment of surgical bioprosthesis dysfunction in aortic position in high-risk surgical patients. Data were obtained in a clinical practice setting and confirmed their technical feasibility, providing the treated individuals with clinical and hemodynamic benefits in the first 30 days, which were maintained at the end of 1 year.
Warfarin for Six Months for Bioprosthetic Aortic Valves
The main parameter considered for the choice of transcatheter aortic prosthesis to be implanted was the internal diameter of the previous surgical bioprosthesis, obtained from the manufacturer or as reported by the VIV Aortic application, developed by Bapat and UBQO Ltd. (London, United Kingdom). Echocardiography was used to assess the mechanism and consequences of prosthetic dysfunction, defining the integrity and mobility of the leaflets, left ventricular function, and the presence of pulmonary hypertension and associated valve diseases. In cases of dysfunction due to prosthesis regurgitation, the transesophageal echocardiography excluded the presence of paravalvular reflux. The CT-angiography of the aorta was the method used to determine the best approach. In case of non-availability of previous surgical data, the CT-angiography helped to analyze the surgical prosthesis diameters and to choose the most appropriate transcatheter prosthesis for VIV procedure. Coronary angiography was used for the assessment of associated coronary artery disease and to estimate the risk of coronary occlusion during valve implantation.