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Wetting, Algebraic Curves, and Conformal Invariance.
Phys Rev Lett
December 2024
GISC, Departamento de Matemáticas, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain.
Recent studies of wetting in a two-component square-gradient model of interfaces in a fluid mixture, showing three-phase bulk coexistence, have revealed some highly surprising features. Numerical results show that the density profile paths, which form a tricuspid shape in the density plane, have curious geometric properties, while conjectures for the analytical form of the surface tensions imply that nonwetting may persist up to the critical end points, contrary to the usual expectation of critical point wetting. Here, we solve the model exactly and show that the profile paths are conformally invariant quartic algebraic curves that change genus at the wetting transition.
View Article and Find Full Text PDFAtrial Secondary Tricuspid Regurgitation: Insights Into the EuroTR Registry.
JACC Cardiovasc Interv
December 2024
Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany; German Center for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany. Electronic address:
Article Synopsis
- Atrial secondary tricuspid regurgitation (A-STR) is a subtype of secondary tricuspid regurgitation (STR) that is often treated with transcatheter tricuspid valve edge-to-edge repair (T-TEER), showing distinct patient characteristics and treatment outcomes.
- A study involving 641 patients revealed that 31% had A-STR, which was linked to better heart function, a higher presence of atrial fibrillation, and more effective TR reduction post-procedure compared to nonatrial STR patients.
- A-STR patients experienced improved survival rates and lower symptomatic burdens after treatment; only 38% remained symptomatic (NYHA class ≥III) after 2 years, compared to 46
Transcatheter Edge-to-Edge Repair in Patients With Complex Tricuspid Valve Anatomy.
JACC Cardiovasc Interv
December 2024
University of Virginia, Charlottesville, Virginia, USA. Electronic address: https://twitter.com/psorajja.
Article Synopsis
- Untreated severe tricuspid regurgitation (TR) is linked to poor health outcomes, making effective treatment essential.
- The study evaluated the 1-year results of transcatheter edge-to-edge repair (TEER) using the TriClip system in patients with complex tricuspid valve issues, finding significant improvements in patient survival and quality of life.
- Results showed that 81% of patients experienced a reduction in TR to moderate or less after one year, with no major adverse effects noted in the first 30 days post-procedure.
FEBio FINESSE: An Open-Source Finite Element Simulation Approach to Estimate In Vivo Heart Valve Strains Using Shape Enforcement.
Ann Biomed Eng
November 2024
Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Purpose: Finite element simulations are an enticing tool to evaluate heart valve function; however, patient-specific simulations derived from 3D echocardiography are hampered by several technical challenges. The objective of this work is to develop an open-source method to enforce matching between finite element simulations and in vivo image-derived heart valve geometry in the absence of patient-specific material properties, leaflet thickness, and chordae tendineae structures.
Methods: We evaluate FEBio Finite Element Simulations with Shape Enforcement (FINESSE) using three synthetic test cases considering a range of model complexity.
Article Synopsis
- - Persistent left superior vena cava (PLSVC) is a rare venous condition that can complicate medical procedures like central venous catheterization and pacemaker placement due to its atypical drainage patterns, which can sometimes lead to serious issues like hypoxia.
- - A case study involving a 64-year-old male with multiple health issues and atrial fibrillation highlighted the challenges of managing PLSVC during a dual-chamber pacemaker implantation, where the patient experienced lead displacement post-procedure.
- - PLSVC typically results from incomplete development of the left anterior cardinal vein and is often identified incidentally during procedures, emphasizing the need for careful navigation during cardiac interventions.
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