Results 71 to 80 of about 1,216,387 (339)

Hybrid Cathode Lithium Battery Discharge Simulation for Implantable Cardioverter Defibrillators Using a Coupled Electro-Thermal Dynamic Model [PDF]

arXiv, 2023
This paper investigates the impact of implantable cardioverter defibrillator (ICD)'s load on its lithium battery power sources through a coupled electro-thermal dynamic model simulation. ICDs are one of the effective treatments available to significantly improve survival of patients with fatal arrhythmia (abnormal heart rhythm) disorders.
arxiv  

Low energy defibrillation in human cardiac tissue: a simulation study [PDF]

, 2008
We aim to assess the effectiveness of feedback controlled resonant drift pacing as a method for low energy defibrillation. Antitachycardia pacing is the only low energy defibrillation approach to have gained clinical significance, but it is still suboptimal.
arxiv   +1 more source

Real-time optical manipulation of cardiac conduction in intact hearts [PDF]

, 2018
Optogenetics has provided new insights in cardiovascular research, leading to new methods for cardiac pacing, resynchronization therapy and cardioversion.
Bocchi, L., Bub, G., Campione, M., Cannazzaro, S., Cerbai, E., Coppini, R., Crocini, C., Ferrantini, C., Giulietti, D., Loew, L.M., Margoni, E., Muellenbroich, C., Pavone, F.S., Poggesi, C., Sacconi, L., Scardigli, M., Yan, P.   +16 more
core   +2 more sources

Defibrillator Threshold Testing [PDF]

, 2013
Since implantable cardioverter-defibrillators (ICDs) were first introduced, defibrillator threshold (DFT) testing was considered an integral part of the implant procedure. Perform‐ ing DFT testing verifies the ability of the ICD in detecting and aborting the lethal arrhythmia it was designed to treat. The process has evolved with the development of the
openaire   +3 more sources

Optimizing low-energy anti-fibrillation pacing: Lessons from a cellular automaton model [PDF]

arXiv, 2021
The essential features of far-field low-energy defibrillation are elucidated using a simple cellular automaton model of excitable media. The model's topological character allows for direct correspondence with both realistic models and experiment. An optimal pacing period is shown to arise from the competition between two effects, and not a resonant ...
arxiv  

Control of scroll wave turbulence using resonant perturbations [PDF]

, 2008
Turbulence of scroll waves is a sort of spatio-temporal chaos that exists in three-dimensional excitable media. Cardiac tissue and the Belousov-Zhabotinsky reaction are examples of such media.
A. S. Mikhailov, A. V. Panfilov, I. V. Biktasheva, K. I. Agladze, P. K. Brazhnik, S. W. Morgan, V. A. Davydov, V. N. Biktashev, V. S. Zykov   +8 more
core   +2 more sources

Predictors of high defibrillation threshold in patients with implantable cardioverter-defibillator using a transvenous dual-coil lead.

Circulation Journal, 2014
BACKGROUND Defibrillation testing (DT) is considered a standard procedure during implantable cardioverter-defibrillator (ICD) implantation. However, little is known about the factors that are significantly related to patients with high defibrillation ...
K. Mizukami, H. Yokoshiki, Hirofumi Mitsuyama, Masaya Watanabe, T. Tenma, Y. Matsui, H. Tsutsui   +6 more
semanticscholar   +1 more source

The Effect of Dofetilide on Ventricular Defibrillation Thresholds [PDF]

Pacing and Clinical Electrophysiology, 2008
Introduction: High defibrillation threshold (DFT) with an inadequate defibrillation safety margin remains an infrequent but troubling problem associated with defibrillator implantation. Dofetilide is a selective class III antiarrhythmic drug that reduces DFTs in a canine model.
J. Marcus Wharton, Ron D.B. Simon, Michael R. Gold, Robert B. Leman, J. Lacy Sturdivant   +4 more
openaire   +3 more sources

Novel Electroactive Therapeutic Platforms for Cardiac Arrhythmia Management

Advanced Science, EarlyView.
Electroactive platforms offer promising applications in cardiac arrhythmia. Based on their energy sources and mechanisms, electroactive platforms are categorized into i) direct electrical stimulation, ii) self‐powered electroactive systems, iii) physical stimuli‐mediated electroactive systems, and iv) conductive systems, and their applications in ...
Juwei Yang, Longfei Li, Yiran Hu, Zhou Li, Wei Hua   +4 more
wiley   +1 more source

An Efficient Shock Advice Algorithm based on K-nearest Neighbors for Automated External Defibrillators [PDF]

arXiv, 2021
Shockable rhythms, namely ventricular fibrillation and ventricular tachycardia, are the main cause of sudden cardiac arrests, which can be detected quickly by the automated external defibrillator (AED) devices. In this paper, a simple but effective algorithm is proposed as the shock advice algorithm applied in AED.
arxiv