Results 81 to 90 of about 13,196 (308)

Mono‐ and Bivalent Poly(iso‐butylene)‐Alanines for Drug‐Delivery of Nimodipine and Triamcinolone Acetonide

Macromolecular Rapid Communications, EarlyView.
Mono‐ and bivalent‐, alanine‐modified poly‐iso‐butylenes, folding into beta‐sheets, were prepared by living carbocationic polymerization and subsequent endgroup modification. These PIB‐conjugates are useful as solid polymers for the drug release of triamcinolone and nimodipine. ABSTRACT Poly‐iso‐butylene (PIB) is a well known biocompatible polymer with
Philipp S. Hilgeroth, Julius F. Butter, Wolfgang H. Binder   +2 more
wiley   +1 more source

Desempenho tardio das biopróteses valvulares porcinas Late performance of porcine valvular bioprostheses

Brazilian Journal of Cardiovascular Surgery, 1992
O objetivo deste trabalho foi o de estudar o desempenho tardio das biopróteses porcinas, modelo Carpentier-Edwards, com ênfase a todos os eventos mórbidos e/ou letais que pudessem estar relacionados à presença da bioprótese. Foram estudados 100 pacientes
Marcos Vinícius H. de Carvalho, Reinaldo W Vieira, Januário M Souza, Sérgio Almeida de Oliveira   +3 more
doaj  

Nanopatterned acellular valve conduits drive the commitment of blood-derived multipotent cells [PDF]

, 2016
Considerable progress has been made in recent years toward elucidating the correlation among nanoscale topography, mechanical properties, and biological behavior of cardiac valve substitutes.
Aguiari, Paola, Barbon, Silvia, Bertalot, Thomas, Conconi, MARIA TERESA, DI LIDDO, Rosa, Gandaglia, Alessandro, Gerosa, Gino, Iop, Laura, Mandoli, Amit, Parnigotto, PIER PAOLO, Schrenk, Sandra, Tasso, Alessia   +11 more
core   +2 more sources

Feasibility Study for Dual Phase Free Breathing 3D bSSFP MRA With Preserved Eddy‐Current Tolerance With Adaptive k‐Space Lengths (PETAL) Acquisition

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To demonstrate the feasibility of a novel dual‐phase self‐navigated, free‐breathing balanced steady‐state free‐precession whole‐heart MRA acquisition for aortic annulus size measurement using a Cartesian trajectory that mitigates eddy‐current artifacts by minimizing k‐space jumps between consecutive readouts with predictable scan times.
Tassia Ribeiro Salles Moura, Dingheng Mai, Emma Wexler, Lydia P. Lewis, Wajeh Abuirmaileh, Angel Houston, Kathy Kohut, Eric Roselli, Deborah Kwon, David Chen, Danielle Kara, Christopher T. Nguyen   +11 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  

Novel heart valve prosthesis with self-endothelialization potential made of modified polyhedral oligomeric silsesquioxane-nanocomposite material [PDF]

, 2016
In the cardiovascular system, the endothelial layer provides a natural antithrombogenic surface on the inner portion of the heart and associated vessels.
Burriesci, G, Ghanbari, H, Marashi, SM, Parsno, S, Radenkovic, D, Roohpour, N, Seifalian, AM   +6 more
core   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
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  

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

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