Results 91 to 100 of about 2,544,811 (316)

Cirurgia valvar em crianças e jovens: resultados de 131 casos Heart valve surgery in children and adolescents

Brazilian Journal of Cardiovascular Surgery, 1990
No período de janeiro de 1983 a dezembro de 1988, 131 pacientes, com idade igual ou inferior a 15 anos, foram submetidos a cirurgia valvar, 74 (56%) de etiologia adquirida e 57 (44%) de etiologia congênita.
Luís Roberto Gerola, Pablo M. A Pomerantzeff, Paulo M Pêgo-Fernandes, Noedir A. G Stolf, Miguel Barbero-Marcial, Munir Ebaid, Rachel Snitcowsky, Max Grinberg, Geraldo Verginelli, Adib D Jatene   +9 more
doaj  

Relationship between Calcium, Phosphorous and Parathoromone with Calcification of Heart Valves In Dialyzed Patients In Qom, 1385-1386 [PDF]

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2008
Background and ObjectivesMetastatic calcification is usually found in patients with chronic renal failure and hemodialyzed patients. Heart calcification becomes worse in hemodialyzed patients due to several factors.
S.M. Mousavi Movahed, Y. Tabaraie, K.H. Alipour Nodoushan, M. Zakarianejad   +3 more
doaj  

Materials Advances in Devices for Heart Disease Interventions

Advanced Materials, EarlyView.
This review examines the crucial role of materials in heart disease interventions, focusing on strategies for monitoring, managing, and repairing heart conditions. It discusses the material requirements for medical devices, highlighting recent innovations and their impact on cardiovascular health.
Gagan K. Jalandhra, Lauryn Srethbhakdi, James Davies, Chi Cong Nguyen, Phuoc Thien Phan, Zachary Och, Aditya Ashok, Khoon S. Lim, Hoang‐Phuong Phan, Thanh Nho Do, Nigel H. Lovell, Jelena Rnjak‐Kovacina   +11 more
wiley   +1 more source

The Influence of the Aortic Root Geometry on Flow Characteristics of a Bileaflet Mechanical Heart Valve [PDF]

arXiv, 2018
Bileaflet mechanical heart valves have one of the most successful valve designs for more than 30 years. These valves are often used for aortic valve replacement, where the geometry of the aortic root sinuses may vary due to valvular disease and affect valve performance. Common geometrical sinus changes may be due to valve stenosis and insufficiency. In
arxiv  

Electroadhesion Suction Cups

Advanced Materials, EarlyView.
Electroadhesion (EA) Suction Cups are electrically operated soft grippers that can pick up a wide range of objects from the top. A soft membrane, driven by electrostatic forces, conforms to surfaces, creating a passive vacuum when lifted. EA suction cups eliminate bulky vacuum systems, offering a compact, efficient, and portable alternative for ...
Fabio Caruso, Herbert Shea, Vito Cacucciolo   +2 more
wiley   +1 more source

A novel mathematical technique to assess of the mitral valve dynamics based on echocardiography [PDF]

arXiv, 2015
Purpose: The mechanics of the mitral valve leaflet as a nonlinear, inelastic and anisotropic soft tissue results from an integrated response of many mathematical/physical indexes' that illustrate the tissue. In the past decade, finite element modeling of complete heart valves has greatly aided evaluation of heart valve surgery, design of bioprosthetic ...
arxiv  

Dabigatran versus warfarin in patients with mechanical heart valves.

New England Journal of Medicine, 2013
BACKGROUND Dabigatran is an oral direct thrombin inhibitor that has been shown to be an effective alternative to warfarin in patients with atrial fibrillation. We evaluated the use of dabigatran in patients with mechanical heart valves. METHODS In this
J. Eikelboom, S. Connolly, M. Brueckmann, C. Granger, A. Kappetein, M. Mack, Jon Blatchford, Kevin Devenny, J. Friedman, K. Guiver, Ruth Harper, Y. Khder, M. Lobmeyer, H. Maas, J. Voigt, M. Simoons, F. Van de Werf   +16 more
semanticscholar   +1 more source

Anatomia da valva atrioventricular esquerda: I. As cúspides Anatomy of the left atrio-ventricular valve: I. The cusps

Brazilian Journal of Cardiovascular Surgery, 1988
Os resultados de um estudo anatômico da valva atrioventricular esquerda, realizado em 30 corações aparentemente normais, conservados em formalina, são comparados aos dados da literatura, tendo por objetivo adequar a nomenclatura e os conceitos anatômicos
Antônio B. Prado Fortuna, Gilson Barreto, Armando Mâncio de Camargo   +2 more
doaj  

Capillary‐Driven 3D Open Fluidic Networks for Versatile Continuous Flow Manipulation

Advanced Materials, EarlyView.
The capillary‐driven 3D open fluidic networks (OFNs), composed of connected polyhedral frames, enable precise, programmable, and versatile manipulation of unary, binary, and multiple continuous flows in both spatial and temporal dimensions. OFNs represent a significant leap beyond conventional microfluidics, unlocking new possibilities for selective ...
Shuangmei Wu, Siqi Sun, Jia Ye, Liqiu Wang, Yiyuan Zhang   +4 more
wiley   +1 more source

Nanostructured 316L Stainless Steel Stent Surfaces Improve Corrosion Resistance, and Enhance Endothelization and Hemocompatibility

Advanced Materials Interfaces, EarlyView.
This study investigates the impact of nanostructured surface modification on corrosion resistance, HUVEC functions, and platelet interactions of 316L SS for cardiovascular stents. Nanostructured surfaces enhanced HUVEC proliferation, migration, and angiogenesis‐related gene expression while reducing platelet adhesion and hemolysis.
Yasar Kemal Erdogan, Pelin Mutlu, Batur Ercan   +2 more
wiley   +1 more source