Results 91 to 100 of about 3,753,947 (257)

Midterm results after aortic valve neocuspidizationCentral MessagePerspective

JTCVS Techniques
Objectives: Aortic valve neocuspidization with autologous pericardium is gaining increasing attention as a surgical treatment option for aortic valve disease. However, little is known about midterm durability and valve-related events.
Anatol Prinzing, MD, Johannes Boehm, MD, Melchior Burri, MD, Julia Schreyer, MSc, Rüdiger Lange, MD, Markus Krane, MD   +5 more
doaj   +1 more source

Structural Valve Deterioration in a Starr-Edwards Mitral Caged-Disk Valve Prosthesis

Circulation Journal, 2013
The durability of the Starr-Edwards (SE) mitral caged-disk valve, model 6520, is not clearly known, and structural valve deterioration in the SE disk valve is very rare.Replacement of the SE mitral disk valve was performed in 7 patients 23-40 years after implantation. Macroscopic examination of the removed disk valves showed no structural abnormalities
Aoyagi, Shigeaki, Tayama, Kei-ichiro, Okazaki, Teiji, Shintani, Yusuke, Kono, Michitaka, Wada, Kumiko, Kosuga, Ken-ichi, Mori, Ryusuke, Tanaka, Hiroyuki   +8 more
openaire   +3 more sources

Cyclic Mechanical Loading of Cardiomyocytes via Pressure‐Driven Non‐Planar Membrane Deformation in a Bioreactor System

Advanced Science, EarlyView.
In this research article, Mansoor and coworkers present a novel device that applies controlled mechanical stimuli to cardiomyocytes using pressure‐driven membrane deformation. By exposing cells to physiologically and pathologically relevant loading conditions, the platform reproduces distinct structural, functional and molecular responses associated ...
Haris Mansoor, Gabrielle Juul, Jil Patel, Heran Pradhan, Gram Hepner, Jackson Jewell, Mark Bardin, Ryan Slusser, Abigail Glezer, Leda Klouda, Melikhan Tanyeri, Anita Saraf   +11 more
wiley   +1 more source

Sixteen year retrospective analysis of rheumatic and non-rheumatic heart disease patients undergoing valve procedures at Groote Schuur Hospital first incidence single aortic and mitral valve replacement [PDF]

, 2012
Includes abstract.Includes bibliographical references.Rheumatic heart disease is still the most common cause of valvular heart lesions requiring replacement or repair procedures worldwide.
Ogunrombi, Akinwumi Babatunde
core   +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

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

Impact of Subclinical Leaflet Thrombosis on Valve Hemodynamic Consequences and Structural Valve Deterioration after Transcatheter Aortic Valve Replacement

, 2023
Background: The effect of subclinical leaflet thrombosis, characterized by hypoattenuated leaflet thickening (HALT), on the valve hemodynamic function and durability of the bioprosthetic valve has not been yet determined. OBJECTIVES: This study aimed to
장미희
core   +1 more source

Making Sweat Measurable: Induction, Sampling, and Refreshment in Wearable Biofluid Sensing

Advanced Science, EarlyView.
Wearable sweat sensing relies not only on chemical detection but also on controlled biofluid management. This Review integrates sweat physiology, induction strategies, and microfluidic sampling architectures, demonstrating how flux, transport, and refreshment shape measurement reliability.
Soyoung Shin, Wei Gao
wiley   +1 more source

High-sensitivity troponin I concentrations are a marker of an advanced hypertrophic response and adverse outcomes in patients with aortic stenosis [PDF]

, 2014
AIMS: High-sensitivity cardiac troponin I (cTnI) assays hold promise in detecting the transition from hypertrophy to heart failure in aortic stenosis.
Lang, Chim C., Langrish, Jeremy P, Langrish, Jeremy P., Newby, David E., Shah, Anoop, Dweck, Marc R, Alam, Shirjel, Mills, Nicholas L; id_orcid, McAllister, David A, Hunter, Amanda L., Cowell, S. Joanna, Boon, Nicholas A, Shah, Anoop S.V., Strachan, Fiona E, McAllister, David A., Maria Choy, Anna; id_orcid, Strachan, Fiona E., Boon, Nicholas A., Mills, Nicholas L., Dweck, Marc R., Shah, Anoop S. V., Newby, David E, Lang, Chim C.; id_orcid, Chin, Calvin W.L., Chin, Calvin W L, Chin, Calvin W. L., Joanna Cowell, S, Maria Choy, Anna, Walker, Simon, Lang, Chim C, Hunter, Amanda L   +30 more
core   +1 more source

A Machine Vision‐Guided Microphysiological Platform With Automated Microfluidics Enables Longitudinal Biomarker Monitoring and Emulation of Translationally Relevant Exposure Scenarios

Advanced Science, EarlyView.
A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen, Yi Zhong, Laura Dangel, Sonia Youhanna, Reza Zandi Shafagh, Jinhye Ryu, Domnica‐Gabriela Gurau, Mathias Haag, Thomas E. Mürdter, Yingxin Liang, Iro Beligiani, Nicole Ziegler, Sabine Willems, Nayere Taebnia, Wouter van der Wijngaart, Volker M. Lauschke   +15 more
wiley   +1 more source