Results 131 to 140 of about 435,399 (363)

Jefferson Surgeon Performs Minimally Invasive Robotic Mitral Valve Repair [PDF]

, 2012
Routine physical exams often reveal the presence of a heart murmur, which can be the first sign of mitral valve prolapse. Typically diagnosed with an echocardiogram, mitral valve prolapse is a condition in which the valve separating the upper and lower ...

core   +1 more source

Programmable Continuous Electrowetting of Liquid Metal for Reconfigurable Electronics

Advanced Materials, EarlyView.
This work introduces a programmable continuous electrowetting (CEW) approach for the dynamic manipulation of liquid metal (LM), enabling directional control via electrochemical modulation. By leveraging laser‐induced graphene (LIG) substrates, a wide range of utilities is demonstrated, including fluidic “valves,” logic gates, and reconfigurable ...
Wedyan Babatain, Christine Park, Deiaa M. Harraz, Ozgun Kilic Afsar, Cedric Honnet, Sarah Lov, Jean‐Baptiste Labrune, Michael D. Dickey, Hiroshi Ishii   +8 more
wiley   +1 more source

Tricuspid Valve Leaflets–Lead Interaction

JACC: Case Reports
The diagnostic approach toward the management of cardiac implantable electronic device–related tricuspid regurgitation is challenging and undefined. Functional cardiac computed tomography angiography provides a complementary role to echocardiography in ...
Davide Margonato, MD, Maurice Enriquez-Sarano, MD, Cheng Wang, MD, Asa Phichaphop, MD, Atsushi Okada, MD, PhD, Hideki Koike, MD, Miho Fukui, MD, PhD, Nadira Hamid, MD, John Lesser, MD, Paul Sorajja, MD, Vinayak Bapat, MD, João L. Cavalcante, MD   +11 more
doaj   +1 more source

Ex Vivo Pilot Study of Cardiac Magnetic Resonance Velocity Mapping for Quantification of Aortic Regurgitation in a Porcine Model in the Presence of a Transcatheter Heart Valve [PDF]

, 2019
Nynke H M Kooistra, Freek Nijhoff, Masieh Abawi, Pierfrancesco Agostoni, Daniël M. Araya Roos, Sjoerd van Tuijl, Niels Blanken, Michiel Voskuil, Pieter A. Doevendans, Pieter R. Stella, Tim Leiner   +10 more
openalex   +1 more source

Multifunctional Fluidic Units for Emergent, Responsive Robotic Behaviors

Advanced Materials, EarlyView.
A multifunctional reconfigurable fluidic unit can be used as sensor, valve and actuator is presented. A unique configuration combines the features of the three components as a Responsive self‐oscillating actuator. The remarkable versatility of the fluidic unit is demonstrated by building different robots with the same fluidic units only by varying ...
Mostafa Mousa, Alberto Comoretto, Johannes T.B. Overvelde, Antonio E. Forte   +3 more
wiley   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

Advanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Vitrification of Heart Valve Tissues

, 2014
Application of the original vitrification protocol used for pieces of heart valves to intact heart valves has evolved over time. Ice-free cryopreservation by Protocol 1 using VS55 is limited to small samples where relatively rapid cooling and warming rates are possible.
Kelvin G M, Brockbank, Zhenzhen, Chen, Elizabeth D, Greene, Lia H, Campbell   +3 more
openaire   +4 more sources

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Takotsubo Cardiomyopathy Following a Transseptal Mitral Valve-in-Valve ProcedureNovel Teaching Points

CJC Open, 2022
Mariama Akodad, MD, PhD, Ming-yu (Anthony) Chuang, MBBS, MMed, Robert Moss, MD, Andrew G. Chatfield, MBChB, David Meier, MD, Janarthanan Sathananthan, MBChB, MPH, David A. Wood, MD, John G. Webb, MD   +7 more
doaj   +1 more source

Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets [PDF]

, 2011
Heart valve prostheses are used to replace native heart valves which that are damaged because of congenital diseases or due to ageing. Biological prostheses made of bovine pericardium are similar to native valves and do not require any anticoagulation ...
Alvarez, L., Atienza Riera, José Miguel, Bourges, Jean Yves, Garcia Paez, J.M., Guinea Tortuero, Gustavo V., Rojo Pérez, Francisco Javier   +5 more
core   +1 more source