Results 131 to 140 of about 13,046 (309)

Trial‐Based Hemolysis Modeling to Investigate Operating Modes of Continuous‐Flow LVADs

Artificial Organs, EarlyView.
This work presents a methodology for determining online‐capable hemolysis models for continuous‐flow LVADs, derived from in vitro trials. The models are based on fitting a modified power law and applying the Lagrangian approach. They assist clinicians in selecting treatment strategies that minimize hemolysis, as demonstrated with the Sputnik1 LVAD ...
Patrick Borchers, Steffen Leonhardt, Marian Walter   +2 more
wiley   +1 more source

Avaliação clínica e ecocardiográfica de pacientes submetidos a implante de bioprótese mitral com preservação da valva natural Clinical and echocardiography evaluation of patients submitted to mitral bioprosthesis implantations with preservation of their native valves

Brazilian Journal of Cardiovascular Surgery, 1990
O objetivo deste trabalho é apresentar os resultados pós-operatórios preliminares de 16 pacientes submetidos a implante de bioprótese valvular de pericárdio bovino com preservação de suas valvas naturais, operados seqüencialmente no período de março a ...
Altamiro Ribeiro Dias, Luiz F. P Assumpção, Volnei Castanho, Sérgio Mattos Lomelino, Luiz Abba Brito, Osmar Samuel, Caio Cesar J Medeiros, Cesar A. M Catani, José R Parga Filho, José Antônio Chinelato, Adib D Jatene   +10 more
doaj  

The long-term outcome of biological or mechanical prostheses for heart valve surgery: a meta-analysis of randomised clinical studies [PDF]

, 2013
Alberto Takeshi Kiyose, Érica Aranha Suzumura, Lígia Nasi Laranjeira, Anna Maria Buehler, José Amalth Espírito Santo, Alexandre Biasi Cavalcanti, Otávio Berwanger, Antônio Carlos Carvalho, A. A. V. P. Paola, Valdir Ambrósio Moisés   +9 more
openalex   +1 more source

In Vitro Calcification Evaluation of Polycarbonate Urethane—Impact of Production Processes

Artificial Organs, EarlyView.
The study shows that hot pressing induces chemical changes in PCU, promoting calcification, while solution‐cast patches remain unaffected. ABSTRACT Background Heart valve diseases remain a leading cause of death in industrialized nations. Polycarbonate urethane (PCU) is a promising material for heart valve prostheses due to its biocompatibility and low
Jan Ritter, Christoph Schmitz, Stephan Rütten, Abdelhafid Aqil, Cécile Oury, Thomas Schmitz‐Rode, Willi Jahnen‐Dechent, Ulrich Steinseifer, Johanna C. Clauser   +8 more
wiley   +1 more source

Tratamento cirúrgico das valvopatias: parte 1 Valvopathies: surgical treatment. Part 1

Brazilian Journal of Cardiovascular Surgery, 1994
Este assunto, de amplo aspecto, será abordado em três partes. O presente trabalho trata-se do histórico, indicação cirúrgica, conduta pré-operatória e próteses valvulares cardíacas.
Domingo M. Braile, Marco A Volpe, Serginando L Ramin, Dorotéia R. S Souza   +3 more
doaj  

Structural evolution of mechanical heart valves (review)

Вестник трансплантологии и искусственных органов
Prosthetic heart valves are widely used biomedical devices. The need for these prostheses is increasing due to the increasing life expectancy of the general population and the consequent incidence of age-related degenerative valvular defects.
M. A. Lepilin, A. V. Bogachev-Prokophiev, М. О. Zhulkov, D. S. Khvan, D. A. Sirota, A. G. Makaev, A. V. Protopopov, A. S. Grenadyorov, Kh. A. Agaeva, A. М. Chernyavskiy   +9 more
doaj   +1 more source

148 * LOW-DOSE WARFARIN THROUGHOUT PREGNANCY IN PATIENTS WITH MECHANICAL HEART VALVE PROSTHESES: A META-ANALYSIS [PDF]

, 2013
Ahmed Hassouna, H. Allam
openalex   +1 more source

Heart valve replacement with the Björk-Shiley and St Jude Medical prostheses: A randomized comparison in 178 patients [PDF]

, 2017
In 178 patients, a randomized prospective comparison between the 60° spherical disc Björk-Shiley (BS) and the St Jude Medical (SJM) heart valve prostheses was performed.
BERTSCHMANN, W., BURCKHARDT, D., DUBACH, P., GRÄDEL, E., HASSE, J., HOFFMANN, A., ROTH, J., STULZ, P., VOGT, S.   +8 more
core  

Outcomes for Congenital Diaphragmatic Hernia in Three Decades: A Report From a UK Surgical Centre

Acta Paediatrica, EarlyView.
ABSTRACT Aims Congenital diaphragmatic hernia (CDH) is associated with lung hypoplasia, pulmonary hypertension and high mortality. Three decades experience from a UK centre is reported. Methods Medical records of CDH newborns between February 1990 and November 2021 and attending a multidisciplinary clinic were examined. Survival and health outcomes are
Wan Teng Lee, Paul D. Losty
wiley   +1 more source

Fluid-structure interaction simulation of mechanical aortic valves: a narrative review exploring its role in total product life cycle

Frontiers in Medical Technology
Over the last years computer modelling and simulation has emerged as an effective tool to support the total product life cycle of cardiovascular devices, particularly in the device preclinical evaluation and post-market assessment.
Mariachiara Arminio, Dario Carbonaro, Umberto Morbiducci, Diego Gallo, Claudio Chiastra   +4 more
doaj   +1 more source