BACKGROUND Paravalvular leakage (PVL) is a known complication of transcatheter aortic valve implantation (TAVI) and is associated with poor outcome. Besides balloon-post-dilatation, valve-in-valve (ViV) procedures can be taken into consideration to control this complication. Herein we present initial experience with use of the latest generation balloon-expandable Edwards Sapien 3® (S3) transcat...

We study the A-optimal design problem where we are given vectors v1, . . . , vn ∈ R, an integer k ≥ d, and the goal is to select a set S of k vectors that minimizes the trace of (∑ i∈S viv > i )−1 . Traditionally, the problem is an instance of optimal design of experiments in statistics (Pukelsheim (2006)) where each vector corresponds to a linear measurement of an unknown vector and the goal i...

Abstract Introduction Despite limited to short and mid-term outcomes, Valve-in-valve (ViV) transcatheter aortic valve implantation (TAVI) has emerged as a less invasive alternative redo surgery for high intermediate-risk patients with good outcomes across different surgical risk profiles. Purpose The aim of the resent meta-analysis is compare VIV fo degenerative bioprosthesis. Methods All studi...

We present results from two-dimensional numerical simulations based on Immersed Boundary Method (IBM) of a cylinder in uniform fluid flow attached to bistable springs undergoing Vortex-Induced Vibrations (VIV). The elastic spring potential for the springs, consisting two wells, is completely defined by spacing between minima and depth wells. perform VIV with linear spring, as well different int...

Bridge vortex-induced vibration (VIV) refers to the vertical resonance phenomenon that occurs in a bridge when pulsating wind passes over it and causes vortices detach. In recent years, VIV events have been observed numerous long-span bridges, leading fatigue damage structure posing risks driving safety. The advancement of technologies such as structural health monitoring (SHM), machine learnin...