Results 101 to 110 of about 107,940 (326)

Serial Changes in Right Ventricular Outflow Tract Gradient and Endocarditis Risk After Transcatheter Pulmonary Valve Replacement

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Infective endocarditis (IE) after transcatheter pulmonary valve replacement (TPVR) remains a significant concern. Although there are overall good short‐term and long‐term hemodynamic outcomes, limited data exist comparing postimplantation echocardiographic findings leading to IE.
Juan C. Samayoa, Lauren Carlozzi, Connie Choi, William Tressel, Jack M. Wolf, Benjamin Langworthy, Agustin Rubio, Troy Johnston, Zachary L. Steinberg, Thomas Jones, Brian Morray   +10 more
wiley   +1 more source

In vitro comparison of aortic heart valve prostheses

The Journal of Thoracic and Cardiovascular Surgery, 1988
The hydrodynamic performance of a series of mechanical heart valve prostheses is measured in the aortic position. All experiments are performed in an electrohydraulic, computer-controlled pulse duplicator simulating the left side of the human circulatory system.
Helmut Reul, Ulrich Steinseifer, Martin Knoch, Erwin Knott, Günter Rau   +4 more
openaire   +3 more sources

Assessment of prosthetic aortic valve performance by magnetic resonance velocity imaging [PDF]

, 2018
Objectives: Magnetic resonance (MRI) velocity mapping was used to evaluate non-invasively the flow profiles of the ascending aorta in normal volunteers and in patients with an aortic (mechanical) valve prosthesis.
Boesiger, Peter, Botnar, René, Hess, Otto, Nagel, Eike, Pedersen, Erik, Scheidegger, Markus   +5 more
core  

Estudo multicêntrico dos resultados das trocas valvares com o uso da bioprótese Biocor no Estado de Minas Gerais Multicentric study of the results with implanted bioprosthesis Biocor in the state of Minas Gerais

Brazilian Journal of Cardiovascular Surgery, 1988
No período de março de 1981 a março de 1988, foram implantadas 2324 biopróteses, em 2016 pacientes, em 5 Centros do Estado de Minas Gerais. Este estudo inclui somente a análise dos pacientes submetidos a troca valvar aórtica (n = 603) e mitral ( n = 1110)
Mário Osvaldo Vrandecic, Bayard Gontijo Filho, João Alfredo Paula e Silva, Fernando Antônio Fantini, Juscelino Teixeira Barbosa, Márcio C São José, Carlos Álvaro dos Santos Pinto, Gilberto Lino Vieira, Homero Geraldo Oliveira, Renato R Rabelo, Sebastião Correa Rabello, Alexandre V Brick, Eduardo Peredo, Adelson A Pedrosa, Antônio Luiz O Azevedo Sobrinho, Maurício Barbosa, Heberth César Miotto, Maria Aparecida Braga, Marco Antônio Salum, Júnia F Braga, Guilherme H Moreira, Osvald Hely Moreira, Carlos Alberto de Oliveira, Flávio Justo Maciel   +23 more
doaj  

Balloon‐Expandable Versus Self‐Expanding Valves in Bicuspid Aortic Stenosis: Insights From the SWEDEHEART Registry

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Transcatheter aortic valve replacement (TAVR) is increasingly used in patients with bicuspid aortic valve (BAV) stenosis, but there is limited comparative data on balloon‐expandable (BEV) versus self‐expanding valves (SEV) in this population. Aim To compare clinical and hemodynamic outcomes between BEVs and SEVs in patients with BAV
Antros Louca, Joakim Sundström, Araz Rawshani, Henrik Hagström, Magnus Settergren, Stefan James, Sasha Koul, Kristofer Skoglund, Dan Ioanes, Sebastian Völz, Anna Myredal, Oskar Angerås, Petur Petursson, Truls Råmunddal   +13 more
wiley   +1 more source

Hemodynamic and thrombogenic analysis of a trileaflet polymeric valve using a fluid-structure interaction approach [PDF]

, 2015
Surgical valve replacement in patients with severe calcific aortic valve disease using either bioprosthetic or mechanical heart valves is still limited by structural valve deterioration for the former and thrombosis risk mandating anticoagulant therapy ...
Bluestein, Danny, Claiborne, Thomas E., Marom, Gil, Piatti, Filippo, Redaelli, Alberto, Sheriff, Jawaad, Slepian, Marvin J., Sturla, Francesco   +7 more
core   +1 more source

Válvula mecânica em carbono, de disco basculante, com revestimento de material biológico: princípios e desenvolvimento Pivoting disc carbon mechanical valve covered with biological material: principles and development

Brazilian Journal of Cardiovascular Surgery, 1995
INTRODUÇÃO: após estudo experimental de implante de material biológico e carbono em átrio esquerdo e aorta, foi desenvolvida uma nova prótese, primeira válvula de carbono feita inteiramente no País.
Hélio Pereira de Magalhães, Ana Lúcia Machado, Artur J Raoul, Ary Fernandes Soutello Filho, Jairo Vaidergorn, José Alberto dos Santos, Márcia Valéria A. P Souza, Maria Paula Cruz   +7 more
doaj  

A Pulsatile Bioreactor for Conditioning of Tissue-Engineered Cardiovascular Constructs under Endoscopic Visualization

Journal of Functional Biomaterials, 2012
Heart valve disease (HVD) is a globally increasing problem and accounts for thousands of deaths yearly. Currently end-stage HVD can only be treated by total valve replacement, however with major drawbacks.
Bassil Akra, Erich Wintermantel, Christian Hagl, Bruno Reichart, Trixi Hollweck, Stefan Pfeifer, Fabian König   +6 more
doaj   +1 more source

Feasibility and Safety of Transfemoral Aortic Valve Replacement Using Local Anesthesia in the Catheterization Suite Versus General Anesthesia in the Operation Theater

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background For over a decade, transfemoral transcatheter aortic valve replacements (TF‐TAVR) have been performed at the University Hospital of Nancy. A minimalistic approach to TF‐TAVR, conducted without general anesthesia and entirely percutaneously in a catheterization suite (simplified approach), has been reported to be as safe and ...
Guillaume Abadié, Pierre Adrien Metzdorf, Giuseppe Lauria, Jeanne Varlot, Mazen Elfarra, Florian Eggenspieler, Juan‐Pablo Maureira, Batric Popovic, Edoardo Camenzind   +8 more
wiley   +1 more source

Vortex Shedding as a Mechanism for Free Emboli Formation in Mechanical Heart Valves [PDF]

, 1999
The high incidence of thromboembolic complications of mechanical heart valves (MHV) limits their success as permanent implants. The thrombogenicity of all MHV is primarily due to platelet activation by contact with foreign surfaces and by ...
Bluestein, Danny, Gharib, Morteza, Rambod, Edmond   +2 more
core   +1 more source