Results 81 to 90 of about 238,134 (266)

Mechanisms of sudden cardiac death

open access: yesIndian Heart Journal, 2014
Worldwide, sudden cardiac death (SCD) is a major problem. It is most frequently caused by ventricular tachyarrhythmias: Monomorphic and polymorphic ventricular tachycardia (VT), torsade de pointes (TdP), and ventricular fibrillation (VF).
Carsten W. Israel
doaj   +1 more source

Sudden death and sudden birth of entanglement in common structured reservoirs [PDF]

open access: yes, 2008
We study the exact entanglement dynamics of two qubits in a common structured reservoir. We demonstrate that, for certain classes of entangled states, entanglement sudden death occurs, while for certain initially factorized states, entanglement sudden birth takes place.
arxiv   +1 more source

Multiscale studies of delayed afterdepolarizations I: A comparison of two biophysically realistic mathematical models for human ventricular myocytes [PDF]

open access: yesarXiv, 2023
Focal arrhythmias, which arise from delayed afterdepolarizations (DADs), are observed in various pathophysiological heart conditions; these can lead to sudden cardiac death. A clear understanding of the electrophysiological factors of cardiac myocytes, which lead to DADs, can suggest pharmacological targets that can eliminate DAD-induced arrhythmias ...
arxiv  

In vivo toxic and lethal cardiorespiratory effects of a synthetic quaternary ammonium salt derivative of haloperidol in mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Hematoxylin–eosin (H&E) stains of the heart, liver, lung, and kidney show acute toxicity. Abstract Background To investigate the toxicity of N‐n‐butyl haloperidol iodide (F2), a quaternary ammonium salt derivative of haloperidol, in mice for potential therapeutic purposes. Methods The acute median lethal dose (LD50) of F2 was determined using the Bliss
Jilin Liao   +6 more
wiley   +1 more source

Sudden cardiac death – Historical perspectives

open access: yesIndian Heart Journal, 2014
Sudden cardiac death (SCD) is an unexpected death due to cardiac causes that occurs in a short time period (generally within 1 h of symptom onset) in a person with known or unknown cardiac disease.
S.P. Abhilash, Narayanan Namboodiri
doaj   +1 more source

Entanglement Sudden Death in Band Gaps [PDF]

open access: yes, 2009
Using the pseudomode method, we evaluate exactly time-dependent entanglement for two independent qubits, each coupled to a non-Markovian structured environment. Our results suggest a possible way to control entanglement sudden death by modifying the qubit-pseudomode detuning and the spectrum of the reservoirs.
arxiv   +1 more source

Viral metagenomic analysis reveals potential biological hazards in non‐human primates in a zoo

open access: yesAnimal Research and One Health, EarlyView.
The investigation identifies the presence of Encephalomyocarditis virus (EMCV), Baboon endogenous virus (BAV), Human endogenous retrovirus (HERV), and Baboon endogenous virus (BaEV) in non‐human primates (NHPs) at the Zoo, indicating potential zoonotic threats.
Ruiying Liang   +13 more
wiley   +1 more source

Erythropoietin doping as cause of sudden death in athletes: an experimental study [PDF]

open access: yes, 2010
Aims: To evaluate the cardiovascular (CV) effects of rhEPO treatment in rats under chronic aerobic exercise and to assess the probable cause of sudden death in one rat.
Belo, L.   +16 more
core   +1 more source

Novel Classification of Ischemic Heart Disease Using Artificial Neural Network [PDF]

open access: yesComputing in Cardiology 2020, 2020
Ischemic heart disease (IHD), particularly in its chronic stable form, is a subtle pathology due to its silent behavior before developing in unstable angina, myocardial infarction or sudden cardiac death. Machine learning techniques applied to parameters extracted form heart rate variability (HRV) signal seem to be a valuable support in the early ...
arxiv  

Atherosclerotic Plaque Progression and Incident Cardiovascular Events in a 10‐Year Prospective Study of Patients With Systemic Lupus Erythematosus: The Impact of Persistent Cardiovascular Risk Factor Target Attainment and Sustained DORIS Remission

open access: yesArthritis &Rheumatology, EarlyView.
Objective Cardiovascular disease (CVD) is a leading cause of death in individuals with systemic lupus erythematosus (SLE). We assessed atherosclerotic plaque progression and incident cardiovascular events in patients with SLE over a 10‐year follow‐up.
Nikolaos Papazoglou   +2 more
wiley   +1 more source

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