Results 61 to 70 of about 420,031 (315)

Fluid-structure interaction simulation of prosthetic aortic valves : comparison between immersed boundary and arbitrary Lagrangian-Eulerian techniques for the mesh representation [PDF]

, 2016
In recent years the role of FSI (fluid-structure interaction) simulations in the analysis of the fluid-mechanics of heart valves is becoming more and more important, being able to capture the interaction between the blood and both the surrounding ...
AJ Gravel, Alessandra M. Bavo, AM Bavo, BE Griffith, BF Stewart, CS Peskin, CT Otto, F Bakhtiary, F Sturla, Francesco Iannaccone, G Marom, GA Holzapfel, Giorgia Rocatello, H Kim, H Mohammadi, H Reul, I Borazjani, Iman Borazjani, J De Hart, J De Hart, J Degroote, JA Stella, Jan Vierendeels, Joris Degroote, KD Lau, KS Kunzelman, L Ge, L Taelman, M Astorino, ND Dos Santos, P Kleine, P Segers, Patrick Segers, PN Jermihov, R Gnyaneshwar, R Lohner, R Van Loon, RG Leyh, S Annerel, S Chandra, S Nobari, W Wu   +41 more
core   +4 more sources

Transseptal BATMAN for High-Risk Valve-in-Ring Procedures

JACC: Case Reports
Valve-in-ring procedures represent a feasible solution for high-risk patients with surgical repair failure. The risk of left ventricular outflow tract obstruction increases the challenge, and transcatheter approaches to prevent it are technically ...
Paolo Denti, MD, Matteo Saccocci, MD, Nicola Buzzatti, MD, Guido Ascione, MD, Davide Margonato, MD, Pamela Gatto, MD, Altin Palloshi, MD, Cristiano Sarais, MD, Matteo Longoni, RT, Francesco Maisano, MD   +9 more
doaj   +1 more source

Artificial Heart Valves [PDF]

JAMA, 2021
William C, Frankel, Tom C, Nguyen
openaire   +2 more sources

Chiral Nanohoops as an Efficient Spin Polarization System

Advanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta, Philipp Seitz, Mathias Hermann, Birgit Esser, Ron Naaman   +4 more
wiley   +1 more source

Bridging aortic valve surgery to 21st century. what can a surgeon do [PDF]

, 2019
Aortic valve stenosis is the most clinically relevant valvular heart disease in the elderlies. Surgical aortic valve replacement (SAVR) represented, for decades, the standard of care for the treatment of severe aortic stenosis.
Barretta, Antonio, Biondi-Zoccai, Giuseppe, D��Abramo, Mizar, Ferrante, Luisa, Frati, Giacomo, Greco, Ernesto, Guerrera, Manuel, Iaccarino, Alessandra, Marullo, Antonino, Miraldi, Fabio, Peruzzi, Mariangela, Proietti, Piero, Saade, Wael, Sciarretta, Sebastiano   +13 more
core   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

Advanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox, Maggie Horst, Etienne Rognin, Yan Xia, Ronan Daly   +4 more
wiley   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

The Heart of a Horse: 3‐D Echocardiographic Analysis of the Equine Aortic Valve [PDF]

, 2019
Aortic regurgitation (AR) can be a normal function of aging or a disease in younger horses. Symptoms range from no outward signs to decreased performance to sudden cardiac arrest.
McElhinney, Amber
core   +1 more source

Source, triggers and clinical implications of hyperlactemia in patients undergoing mitral valve surgery using Custodiol cardioplegia [PDF]

, 2013
Postoperative blood hyperlactaemia is an indicator of organ anaerobic metabolism and is associated with morbidity after cardiac surgery. This prospective study aims to explore the source, triggers and clinical implications for hyperlactaemia in patients ...
Angelini, Gianni D, Ascione, Raimondo, Mangino, Domenico, Polesel, Elvio, Suleiman, M.Saadeh, Venturini, Andrea, Zanchettin, Chiara, Zoffoli, Giampaolo   +7 more
core   +2 more sources

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source