Results 91 to 100 of about 13,046 (309)

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

First evaluation of a novel pulsatile LVAD: Feasibility and haemodynamic impact in acute heart failure

ESC Heart Failure, EarlyView.
The pulsatile ventricular assist platform (pVAP) was connected to a membrane pump in six large swine models. The system, driven by a conventional intra‐aortic balloon pump console (IABP), was utilized to drain left atrial blood during systole and to eject the collected blood back into the ascending aorta during diastole.
Sara Knigge, Marcelo B. Bastos, Bastian Schmack, Liam Schana, Oren Malchin, Ali S. Merzah, Aron F. Popov, Alexander Weymann, Arjang Ruhparwar, Felix Schumacher, Günes Dogan, Jan D. Schmitto   +11 more
wiley   +1 more source

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  

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

Aortic root enlargement does not increase the surgical risk and short-term patient outcome [PDF]

, 2011
Objective: To analyze the short-term outcome of aortic root enlargement (ARE) using death and adverse events as end points. Methods: From January 1999 through December 2009, 3339 patients were subjected to aortic valve replacement (AVR).
Antunes, MJ, Correia, PM, Coutinho, GF, Oliveira, JF, Paupério, G   +4 more
core   +1 more source

Relevance of residual tricuspid regurgitation for right ventricular reverse remodelling after tricuspid valve intervention in patients with severe tricuspid regurgitation and right‐sided heart failure

European Journal of Heart Failure, EarlyView.
Right ventricular reverse remodelling after transcatheter tricuspid valve intervention (TTVI). Optimal tricuspid regurgitation (TR) reduction is critical for right ventricular reverse remodelling. CMR, cardiac magnetic resonance; echo, echocardiography; RV EDV, right ventricular end‐diastolic volume. Abstract Aims Right ventricular reverse remodelling (
Ludwig T. Weckbach, Lukas Stolz, Philipp M. Doldi, Hannah Glaser, Cecilia Ennin, Michael Kothieringer, Thomas J. Stocker, Michael Näbauer, Mohammad Kassar, Sara Bombace, Karl‐Patrik Kresoja, Philipp Lurz, Fabien Praz, Holger Thiele, Volker Rudolph, Steffen Massberg, Jörg Hausleiter   +16 more
wiley   +1 more source

Avaliação de resultados tardios com bioprótese de aorta heteróloga porcina Late results with an heterologous aortic porcine bioprosthesis

Brazilian Journal of Cardiovascular Surgery, 1989
Foi analisada a evolução de 150 pacientes operados entre 1982 e 1988, com bioprótese porcina. Eram 62 do sexo feminino e 88 do masculino, idade média de 51,6 (15 a 81) anos.
Renato A. K Kalil, João Ricardo Sant'Anna, Júlio E Schoer, Paulo Roberto Prates, Fernando A Lucchese, Edemar M Pereira, Altamiro R Costa, Ivo A Nesralla   +7 more
doaj  

Profile of Heart Donors from the Human Valve Bank of the Santa Casa de Misericórdia de Curitiba

Brazilian Journal of Cardiovascular Surgery
Introduction: Human heart valves are used as replacement valves and have satisfactory functional results compared with conventional prostheses. Objective: Characterize the profile of effective heart donors from the human valve bank of the santa casa de ...
Renata Maria Ferreira, Marise Teresinha Brenner Affonso da Costa, Osiris Canciglieri Junior, Ângelo Márcio Oliveira Sant'Anna   +3 more
doaj   +1 more source

Simulation of blood flow through an artificial heart [PDF]

A numerical simulation of the incompressible viscous flow through a prosthetic tilting disk heart valve is presented in order to demonstrate the current capability to model unsteady flows with moving boundaries.
Chang, I-Dee, Kiris, Cetin, Kwak, Dochan, Rogers, Stuart E.   +3 more
core   +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