Results 121 to 130 of about 847,806 (251)

Three-dimensional printing of models for preoperative planning and simulation of transcatheter valve replacement

, 2012
In this study, we show the use of three-dimensional printing models for preoperative planning of transcatheter valve replacement in a patient with an extreme porcelain aorta.
Schmauss, Daniel, Beiras-Fernandez, Andres, Schmitz, Christoph, Schwarz, Florian, Weber, Stefan, Kupatt, Christian, Sodian, Ralf, Bigdeli, Amir Koshrow, Gerber, Nicholas, Becker, Christoph   +9 more
core   +1 more source

Static Drainage H2/O2 PEM Fuel Cells Enabled by Water Transport Plates: Pore‐Scale Design and Transport Mechanisms

Advanced Science, EarlyView.
The WTP is a key component of static drainage PEMFCs, enabling cathode water removal and gas sealing through capillary forces. This work investigates the mechanisms governing WTP drainage and sealing performance and develops predictive approaches for WTP design optimization.
Mengdi Guo, Diankai Qiu, Dong Zhu, Linfa Peng   +3 more
wiley   +1 more source

Programmable Information Processing With Reconfigurable Self‐Contact Variable Stiffness Mechanical Metamaterial

Advanced Science, EarlyView.
Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Huadong Qin, Wenyu Zhu, Xin Wang, Cheng Shen, Li Cheng, Tian Jian Lu, Terence Xiaoteng Liu, Han Meng   +7 more
wiley   +1 more source

Proteogenomic Profiling of Idiopathic Pulmonary Arterial Hypertension Identifies Sex‐Differential Proteins and Candidate Therapeutic Targets

Advanced Science, EarlyView.
An integrated proteogenomic analysis of 44,137 predominantly European‐ancestry UK Biobank participants aged 40–69 years identifies 12 robust proteins associated with idiopathic pulmonary arterial hypertension. These proteins define a high‐mortality molecular endotype, support early detection and mortality prediction, reveal sex‐differential proteomic ...
Xinjie Lin, Yangchang Zhang, Yang Pu, Duanke Liu, Tao Lei, Kai Ma, Qiyu He, Zheng Dou, Yuze Liu, Dengyuan Liu, Yinge He, Yanshang Wang, Xiaojiao Zheng, Yanbing Ma, Jianrong Zhou, Weiding Zhai, Binbin Su, Li Chen, Shoujun Li   +18 more
wiley   +1 more source

Printing‐Assisted Integration of Thermal, Fluidic and Electrical Components in Implants for Focal Brain Cooling

Advanced Science, EarlyView.
Extrusion‐based 3D printing of silicones and discrete electronic components are combined to create cortical implants for rodents that integrate thermal neuromodulation and electrical recording. Linked to an autonomous auxiliary driver unit, the system enables rapid, stable and localized hypothermia alongside ECoG recording.
Spencer Ryan Moore, Naomi King, Aruã Clayton Da Silva, Clare Howarth, Jason Berwick, Thomas E. Paterson, Ivan R. Minev   +6 more
wiley   +1 more source

Replacement aortic valve leaflets

, 2010
The Replacement aortic valve leaflets is technique for replacing one or more dysfunctional leaflets in an aortic heart ...
Mitrev, Zan
core   +1 more source

Prosthetic valve endocarditis caused by multidrug-resistant Candida albicans in a patient with myelodysplasia syndrome: A case report and literature review

Current Medical Mycology, 2018
Background and Purpose: Candida endocarditis is an infrequent disease with a high mortality rate, which commonly occurs in immunosuppressed patients with cardiac valve replacement.
Firoozeh Kermani, Tahereh Shokohi, Mahdi Abastabar, Lotfollah Davoodi, Shervin Ziabakhsh Tabari, Rozita Jalalian, Shirin Mehdipour, Roghayeh Mirzakhani   +7 more
doaj  

When surgery is not an option: case report of transcatheter valve-in-valve replacement for mitral valve dysfunction

The Egyptian Heart Journal
Background Heart valve diseases affect over 100 million people globally, with mitral regurgitation being the most common in developed countries. Bioprosthetic heart valves, frequently used for replacement, typically last 10–15 years before degeneration ...
Yakup Alsancak, Hasan Kan, Ahmet Seyfettin Gürbüz, Nergiz Aydın, Muhammed Fatih Kaleli   +4 more
doaj   +1 more source

The Deubiquitinase UCHL1 Drives Susceptibility to Atrial Fibrillation by Stabilizing CaMKII‐δ

Advanced Science, EarlyView.
UCHL1 is highly upregulated in mice and patients with AF. UCHL1 directly binds to and removes K48‐linked polyubiquitin chains from CaMKII‐δ at K251 and enhances CaMKII‐δ stability, which activates RyR2, disrupts Ca2+ handling, and promotes AF. These findings establish UCHL1 as a critical regulator of CaMKII‐δ stability and AF‐related Ca2+ handling ...
Hai‐Lian Bi, Yu‐Hui Gu, Kai‐Wen Ren, Xiao‐Hong Yu, Yun‐Long Xia, Xiao‐Lei Yang, Hui‐Hua Li   +6 more
wiley   +1 more source

Successful Transcatheter Valve-in-Valve Implantation in a Small Deteriorated Aortic Valve Bioprosthesis

, 2013
Increased life expectancy and improvement in clinical outcome following surgery has led to an increasing number of elderly patients with a history of prior aortic valve replacement (AVR).
Bjursten, Henrik,, Harnek, Jan,, Nozohoor, Shahab,, Götberg, Matthias,, Lund University.   +4 more
core