Results 51 to 60 of about 420,031 (315)

A Misleading Left Atrial Appendage

JACC: Case Reports, 2023
Left atrial appendage collapse is a relatively unusual echocardiographic finding. Although in post-cardiac surgery patients it may be an early sign of cardiac tamponade, and pericardiocentesis should be discussed, a conservative approach may be followed ...
Alexandros Kourtinos, MD, Samy Aghezzaf, MD, David Montaigne, MD, PhD, Augustin Coisne, MD, PhD   +3 more
doaj   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Figure-8 Tachycardia Confined to the Anterior Wall of the Left Atrium [PDF]

, 2004
Incisional atrial tachycardias have been described most frequently in patients with previous corrective surgery for congenital heart defects and mitral valve disease.
Liuba, Ioan, Jönsson, Anders, Walfridsson, Håkan   +2 more
core  

Transcatheter indirect mitral annuloplasty induces annular and left atrial remodelling in secondary mitral regurgitation

ESC Heart Failure, 2020
Aims Mitral annuloplasty using the Carillon Mitral Contour System (CMCS) reduces secondary mitral regurgitation (SMR) and leads to reverse left ventricular remodelling.
Tobias Friedrich Ruf, Felix Kreidel, Alexander Robert Tamm, Martin Geyer, Omar Hahad, Julia Claudia Zirbs, Ben Luca Schwidtal, Andres Beiras‐Fernandez, Klaus K. Witte, Thomas Münzel, Ralph Stephan vonBardeleben   +10 more
doaj   +1 more source

Hypothermia-induced accelerated idioventricular rhythm after cardiac surgery; a case report

BMC Cardiovascular Disorders, 2023
Background Accelerated idioventricular rhythm (AIVR) is a slow ventricular arrhythmia, commonly due to myocardial ischemia in coronary artery disease.
Saeid Hosseini, Soheila Salari, Sepideh Banar, Yousef Rezaei, Atieh Tajik, Ali Zahedmehr, Zahra Emkanjoo   +6 more
doaj   +1 more source

FUNDC1: A Promising Mitophagy Regulator at the Mitochondria-Associated Membrane for Cardiovascular Diseases

Frontiers in Cell and Developmental Biology, 2021
Mitochondrial autophagy (or mitophagy) regulates the mitochondrial network and function to contribute to multiple cellular processes. The protective effect of homeostatic mitophagy in cardiovascular diseases (CVDs) has attracted increasing attention ...
Guoyong Li, Guoyong Li, Guoyong Li, Junli Li, Ruochen Shao, Ruochen Shao, Ruochen Shao, Jiahao Zhao, Jiahao Zhao, Mao Chen, Mao Chen   +10 more
doaj   +1 more source

Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing

Advanced Functional Materials, EarlyView.
Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff, Saman Jamshididana, Zach Miller, Kassandra Hernandez, Nicolas Gonsalves, Andre Olarra, Elliot Yoo, Jeremy A. Herman, Devin J. Roach   +8 more
wiley   +1 more source

Impact Fatigue Characteristics of Valve Leaves for Small Hermetic Reciprocating Compressors [PDF]

, 2010
This paper presents an investigation on the impact fatigue characteristics of valve leaves that are prevalently used in hermetic reciprocating compressors especially for the household type refrigerators.
Altunlu, A. Can, Kara, Serkan, Lazoglu, Ismail, Oguz, Emre   +3 more
core   +3 more sources

Prediction of Turbulent Shear Stresses through Dysfunctional Bileaflet Mechanical Heart Valves using Computational Fluid Dynamics

, 2018
There are more than 300,000 heart valves implanted annually worldwide with about 50% of them being mechanical valves. The heart valve replacement is often a common treatment for severe valvular disease.
Gamage, Peshala T., Khalili, Fardin, Mansy, Hansen   +2 more
core   +1 more source