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Three-dimensional two-way fluid-structure interaction simulations are used to compare the differences in hemodynamics and valvular stress distribution between native aortic valves, Ozaki leaflets, Ross leaflets, and bioprosthetic heart valve.
Background Valve-in-valve (ViV) transcatheter aortic valve replacement in small surgical bioprostheses is often limited by residual gradients and prosthesis-patient mismatch. Implantation depth is operator-controlled, but depth guidance for different valve combinations remains limited. Objectives The authors aimed to e...
Objectives Up to 40% of patients with aortic stenosis undergoing valve replacement have a small annulus, a key determinant of valve hemodynamics, durability, and clinical outcomes. Surgical and transcatheter approaches have been reported to be determined by prosthesis design, considering the operative mortality and mor...
BACKGROUND Patients with small aortic annuli undergoing transcatheter aortic valve implantation (TAVI) are at risk of higher residual transvalvular gradients. Evidence on the performance of new-generation intra-annular self-expanding valves in this anatomical setting remains limited. AIMS To evaluate the impact of an...
Lifetime management of aortic stenosis has become a major focus of ongoing research. As valve-in-valve (ViV) procedures gain more relevance, pre-emptive surgical valve selection plays a key component of long-term planning. We report our early hemodynamic experience with the porcine Epic Max valve, which was enginee...
The combination of RDV and a minimally invasive approach proved to be safe, with low morbidity and mortality and excellent short-term hemodynamic improvement.
Introduction Transcatheter heart valve implantation into a failed surgical heart valve (THV-in-SHV) is an established reintervention strategy for degenerated aortic bioprostheses; however, early procedural outcomes, discharge hemodynamics, and standardized safety remain clinically relevant in routine practice. Material...
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