Results 71 to 80 of about 3,694,568 (218)

Increased Disarray of Extracellular Matrix Collagen‐I Fiber Network and Compromised Biomechanics in Aortae From Marfan‐Syndrome Mice Assessed Through Combined Opto‐Biomechatronics

Advanced Science, EarlyView.
Combined structure‐function assessment in aortic rings from Marfan mice using MechaMorph Opto‐Biomechatronics technology relates increased elasticity (stiffness) and dynamic viscosity and less ordered extracellular matrix 3D‐structure (collagen) as potential causes for impaired Windkessel function and compromised haemodynamics in Marfan's syndrome ...
Dominik Schneidereit, Anika Nagel, Vanessa I. T. Zwaans, Laureen Schurr, Jonas Ahr, Michael Haug, Anna Piluso, Alexandra Sporkova, Matthias Karck, Andreas H. Wagner, Oliver Friedrich   +10 more
wiley   +1 more source

Durabilidad de la bioprótesis Trifecta™ a medio plazo: experiencia de un centro

Cirugía Cardiovascular, 2022
Resumen: Introducción y objetivos: Aunque la bioprótesis aórtica Trifecta™ (Abbott Vascular, Santa Clara, California) presenta un buen comportamiento hemodinámico a corto plazo, se ha descrito un aumento de deterioro estructural precoz.
Lourdes Montero-Cruces, Manuel Carnero-Alcázar, Daniel Pérez-Camargo, Fernando José Reguillo Lacruz, Francisco J. Cobiella-Carnicer, Luis C. Maroto-Castellanos   +5 more
doaj   +1 more source

Long Noncoding RNAs in Aortic Dissection: Mechanistic Roles and Therapeutic Potential

AGING MEDICINE, EarlyView.
Aortic dissection (AD) involves vascular inflammation, VSMC dysfunction, and ECM degradation. LncRNAs regulate AD progression via ceRNA networks, with great potential as diagnostic biomarkers and therapeutic targets, while further clinical validation is needed.
Chao Chang, Yongrong Lan, Zhenhua Wu, Jie Geng, Zhigang Guo, Qingliang Chen   +5 more
wiley   +1 more source

Idle Operation with Low Intake Valve Lift in a Port Fuel Injected Engine [PDF]

, 2013
Reducing fuel consumption is a prime objective in the automotive industry in order to meet regulatory and customer demands. Variable valve actuation offers many opportunities for improving the spark ignition engine’s performance in areas such as fuel ...
CLENCI, Adrian, Georges Descombes, Michael Deligant, PODEVIN, Pierre, NICULESCU, Rodica, DELIGANT, Michael, BIZIAC, Adrian, Rodica Niculescu, Pierre Podevin, DESCOMBES, Georges, Bîzîiac, Adrian, Adrian Bîzîiac, Adrian Clenci   +12 more
core   +1 more source

Non-linear finite element analyses of the aortic heart valve [PDF]

, 2004
Includes bibliographical references.Finite element models of the aortic heart valve have been successfully used in the past to gain insight into the mechanics of the valve and to aid in understanding of valve failure.
Koch, Thorsten M
core   +1 more source

Transcatheter aortic valve durability: a contemporary clinical review

Frontiers in Cardiovascular Medicine, 2023
Encouraged by randomized controlled trials demonstrating non-inferiority of transfemoral transcatheter aortic valve implantation (TAVI) compared to surgical aortic valve replacement (SAVR) across all surgical risk categories, there has been a dramatic ...
Nicholas J. Montarello, Yannick Willemen, Gabriela Tirado-Conte, Alejandro Travieso, Gintautas Bieliauskas, Lars Sondergaard, Ole De Backer   +6 more
doaj   +1 more source

Crease‐Encoded Soft Origami Chambers: A Unified Design‐to‐Fabrication Framework for Low‐Pressure Pneumatic Joints

Advanced Intelligent Systems, EarlyView.
Origami turns a single silicone chamber into three different soft fluidic actuators. Crease angles alone decide whether it elongates, bends, or twists, and the fully folded chambers are cast monolithically in one day. Below 15 kPa, they reach 268% axial stretch, 72° bending, and 55° twist—no strain‐limiting layers, no rigid reinforcements, no vacuum ...
Alexia Le Gall, Mattia Franchi de’ Cavalieri, Gastone Ciuti, Arianna Menciassi, Matteo Cianchetti   +4 more
wiley   +1 more source

Silk Fibroin for Cardiovascular Medical Devices: Review of Material Properties, Applications, and Clinical Potential

Advanced NanoBiomed Research, EarlyView.
Silk fibroin is an attractive natural biomaterial that can be engineered into diverse cardiovascular constructs, including vascular grafts, cardiac patches, heart valves, and stent coatings. Its tunable biological and mechanical properties have driven substantial preclinical progress; however, widespread clinical translation in cardiovascular ...
Mahsa Haghighattalab, Matt Govendir, Kristina Andelovic, Zachary Och, Fatemeh Karimi, Munira Xaymardan, Tomasz Jungst, Jelena Rnjak‐Kovacina, Nona Farbehi   +8 more
wiley   +1 more source

Factors influencing cryopreserved allograft heart valve degeneration [PDF]

, 2006
© 2006 Dr. Cheng-Hon YapHeart valve replacement is becoming more commonplace in developed nations. Despite this the ideal valve prosthesis has not been found.
Yap, Cheng-Hon
core   +1 more source

‘Speckled appearance of ball and cage valve’: An unusual 2D-ECHO artifact or a sign of pathological degeneration?

IHJ Cardiovascular Case Reports, 2020
We report an interesting but rare 2D ECHO image of a ‘ball and cage’ prosthetic mitral valve resembling a ’starry sky’ pattern, possibly secondary to degeneration of the silicon rubber ball.
Ankit Kumar Sahu, Aditya Kapoor
doaj   +1 more source