Results 71 to 80 of about 167,038 (225)
Cluj Veterinary JournalBackground: Symptomatic bradyarrhythmias in dogs can lead to sever hemodynamical compromise due to impaired oxygen and nutrients delivery and even sudden cardiac death.
Florin Leca +8 more
doaj +1 more source
Interdisciplinary Medicine, EarlyView.This article provides an overview of the construction strategies of 3D printing materials in cardiac tissue repair, focusing on personalized design, advanced printing technologies, and multi‐material integration. It showcases the application of carbon‐based, biomass‐based, and bio‐based composites.
Mingru Kong +10 more
wiley +1 more source
Cardiac Alternans Arising from an Unfolded Border-Collision Bifurcation [PDF]
arXiv, 2007 Following an electrical stimulus, the transmembrane voltage of cardiac tissue rises rapidly and remains at a constant value before returning to the resting value, a phenomenon known as an action potential. When the pacing rate of a periodic train of stimuli is increased above a critical value, the action potential undergoes a period-doubling ...
arxiv
Brazilian Journal of Cardiovascular Surgery, 2001 Introdução/Objetivo: O implante de marcapasso cardíaco definitivo é um procedimento caracterizado por um baixo índice de complicações. No entanto, a infecção, principalmente a de loja de fonte geradora, caracteriza-se como uma das complicações mais ...
Acrisio Sales VALENTE +6 more
doaj +1 more source
Mechanism of Discordant Alternans in Spatially Homogeneous Tissue [PDF]
arXiv, 2000 Discordant alternans,the phenomenon of 2 separate cardiac tissue locations exhibiting action potential duration (APD) alternans of opposite phase, appears to be a potential mechanism for electrocardiographic T wave alternans, but its initiation mechanism is unknown. We studied behavior of one- and two- dimensional cardiac tissue spatially homogenous in
arxiv
Experiência inicial da estimulação cardíaca artificial com marcapasso VDD de eletrodo único
Brazilian Journal of Cardiovascular Surgery, 1998 Objetivo: O objetivo deste estudo é avaliar o desempenho do marcapasso VDD com eletrodo único Dromos-Biotronic. Casuística e Métodos: Num período de 12 meses foram realizados 21 implantes de sistemas VDD com eletrodo único, no Instituto do Coração do ...
Leonardo Augusto D'Ávila GONÇALVES +10 more
doaj +1 more source
Conductive Hydrogel‐Based Neural Interfaces: From Fabrication Methods, Properties, to Applications
Small Structures, EarlyView.This review summarizes the fabrication methods, properties, and applications of conductive hydrogels in neural interfaces. Finally, the prevailing challenges and outlines of future directions in the field of conductive hydrogels for neural interfaces are provided, emphasizing the need for interdisciplinary research to address issues such as long‐term ...
Xin‐Yu Xue +10 more
wiley +1 more source
The Chemical Record, EarlyView.Sustainable extraction methods for converting diverse biomass waste into nanocellulose with remarkable biomedical properties were explored. Optimized pretreatment, mechanical processing, and surface modification techniques that enhanced the functionality of nanocellulose were detailed.
Mehrdad Ghamari +8 more
wiley +1 more source
CAAI Transactions on Intelligence Technology, EarlyView.Abstract Abnormalities in the heart's rhythm, known as arrhythmias, pose a significant threat to global health, often leading to severe cardiac conditions and sudden cardiac deaths. Therefore, early and accurate detection of arrhythmias is crucial for timely intervention and potentially life‐saving treatment.
Hasnain Ali Shah +4 more
wiley +1 more source
Spatiotemporal dynamics of pacing in models of anatomical reentry [PDF]
arXiv, 2001 Reentry around non-conducting ventricular scar tissue, which often causes lethal arrhythmias, is typically treated by rapid stimulation from an implantable defibrillator. However, the mechanisms of termination (success and failure) are poorly understood.
arxiv