Results 11 to 20 of about 7,681 (206)

Tratamiento de la fibrilación auricular mediante toracoscopia (TT-MAZE)

Cirugía Cardiovascular, 2020
Resumen: Introducción y objetivos: La ablación de la fibrilación auricular (FA) por toracoscopia o totally thoracoscopic maze (TT-MAZE) es un tratamiento quirúrgico eficaz cuya indicación, en nuestro país, es marginal.
Lourdes Montero-Cruces, Daniel Pérez-Camargo, Blanca Torres-Maestro, Manuel Carnero-Alcázar, Francisco Javier Cobiella-Carnicer, Luis C. Maroto-Castellano   +5 more
doaj  

Further Advances in Atrial Fibrillation Research: A Metabolomic Perspective

Applied Sciences, 2022
Atrial fibrillation involves an important type of heart arrhythmia caused by a lack of control in the electrical signals that arrive in the heart, produce an irregular auricular contraction, and induce blood clotting, which finally can lead to stroke ...
Laura Arbeloa-Gómez, Jaime Álvarez-Vidal, Jose Luis Izquierdo-García   +2 more
doaj   +1 more source

Isotropic-nematic phase transition in amyloid fibrilization [PDF]

Physical Review E 80, 031902 (2009), 2009
We carry out a theoretical study on the isotropic-nematic phase transition and phase separation in amyloid fibril solutions. Borrowing the thermodynamic model employed in the study of cylindrical micelles, we investigate the variations in the fibril length distribution and phase behavior with respect to changes in the protein concentration, fibril's ...
arxiv   +1 more source

Unraveling capillary interaction and viscoelastic response in atomic force microscopy of hydrated collagen fibrils [PDF]

Nanoscale 9 (2017) 1244-1256, 2019
The mechanical properties of collagen fibrils depend on the amount and the distribution of water molecules within the fibrils. Here, we use atomic force microscopy (AFM) to study the effect of hydration on the viscoelastic properties of reconstituted type I collagen fibrils in air with controlled relative humidity. With the same AFM tip, we investigate
arxiv   +1 more source

Transcoronary study of biomarkers in patients with heart failure: Insights into intracardiac production

ESC Heart Failure, EarlyView.
Abstract Aims Biomarkers are pivotal in the management of heart failure (HF); however, their lack of cardiac specificity could limit clinical utility. This study aimed to investigate the transcoronary changes and intracardiac production of these biomarkers.
Jie Ren, Junhan Zhao, Shengwen Yang, Shuoyan An, Chi Cai, Jing Wang, Min Gu, Hongxia Niu, Shurong Li, Wei Hua, Beiyao Gao   +10 more
wiley   +1 more source

Atrial Fibrillation Detection Using RR-Intervals for Application in Photoplethysmographs [PDF]

arXiv, 2023
Atrial Fibrillation is a common form of irregular heart rhythm that can be very dangerous. Our primary goal is to analyze Atrial Fibrillation data within ECGs to develop a model based only on RR-Intervals, or the length between heart-beats, to create a real time classification model for Atrial Fibrillation to be implemented in common heart-rate ...
arxiv  

Atrioventricular conduction abnormalities are associated with poor outcome following intermittent umbilical cord occlusions in fetal sheep

Acta Obstetricia et Gynecologica Scandinavica, EarlyView.
Continuous electrocardiographic monitoring of fetal sheep heart during intermittent umbilical cord occlusions gradually leading to severe metabolic acidemia revealed several fetal arrhythmias including atrioventricular block, ventricular tachycardia, and ventricular fibrillation that would have gone unnoticed with current fetal monitoring systems ...
Juulia Lantto, Jonas Johnson, Heikki Huhta, Mervi Haapsamo, Panu Kiviranta, Kati Räsänen, Hanna‐Marja Voipio, Sven‐Erik Sonesson, Juha Voipio, Juha Räsänen, Ganesh Acharya   +10 more
wiley   +1 more source

Detección automática de la Fibrilación Auricular a través de un Smartwatch

Revista Electrónica de AnestesiaR, 2019
La fibrilación auricular es la arritmia cardiaca más frecuente en la práctica clínica. La prevalencia se sitúa en torno al 0,4 - 1 % de la población general. Aumenta con la edad, llegando hasta el 8% a partir de los 80 años. Esta arritmia es la principal
Anna Abad Torrent, Helena Benito Naverac
doaj   +1 more source

An equilibrium double-twist model for the radial structure of collagen fibrils [PDF]

, 2014
Mammalian tissues contain networks and ordered arrays of collagen fibrils originating from the periodic self-assembly of helical 300 nm long tropocollagen complexes. The fibril radius is typically between 25 to 250 nm, and tropocollagen at the surface appears to exhibit a characteristic twist-angle with respect to the fibril axis.
arxiv   +1 more source

Improvement in short‐term outcome over time, in a single center embarking on a canine mitral valve repair program using a structured multidisciplinary approach

Veterinary Surgery, EarlyView.
Abstract Objective To describe a structured approach to the development of a mitral valve repair (MVR) program for dogs with myxomatous mitral valve disease (MMVD) and to document the change in short term outcome over time. Study design Clinical prospective study. Animals Dogs (n = 132) with MMVD undergoing MVR at a single hospital.
Daniel J. Brockman, Thomas D. Greensmith, Matteo Rossanese, Alison Young, Sarah L. Carey, Adrian Boswood, Thaleia‐Rengina Stathopoulou, Carolina Palacios Jimenez, Nigel Cross   +8 more
wiley   +1 more source