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Imaging ventricular fibrillation [PDF]
Journal of Electrocardiology, 2007 Ventricular fibrillation (VF) had been traditionally considered as a highly disorganized process of random electrical activity emanating from multiple, short-lived, reentrant electrical waves. It is the incessant breakup of wave fronts and the creation of new daughter waves (wavebreaks) that perpetuate VF. Other studies described VF as a process with a
Guy Salama, Bum-Rak Choi
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Vulnerability to ventricular fibrillation [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 1998 One of the factors that favors the development of ventricular fibrillation is an increase in the dispersion of refractoriness. Experiments will be described in which an increase in dispersion in the recovery of excitability was determined during brief episodes of enhanced sympathetic nerve activity, known to increase the risk of fibrillation.
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Ventricular fibrillation and defibrillation [PDF]
Archives of Disease in Childhood, 2007 Cardiac arrest in children is not often due to a disturbance in rhythm that is amenable to electrical defibrillation, contrary to the situation in adults. When a shockable rhythm is present, defibrillation using an external electric shock applied at an early stage after pre-oxygenation and chest compressions is of proven efficacy. Success at conversion
P Jones, N Lodé
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Modern clinical retrospective on ventricular rhythm disturbances in acute myocardial infarction: Latest treatment mode according to the valid recommendations [PDF]
Hospital Pharmacology, 2015 Ventricular arrhythmias are the most common cause of mortality in patients with acute myocardial infarction. Arrhythmias in acute coronary syndrome occur because of unbalanced function of the autonomic nervous system, because of electrolyte status ...
Lasica Ratko M. +11 more
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Left ventricular diastolic dysfunction and N-terminal probrain sodium-uretic peptid level in patients with atrial fibrillation [PDF]
Medičnì Perspektivi, 2013 In our study 100 consecutive non-valvular permanent atrial fibrillation patients with NYHA I – III heart failure, 43 - 86 years old (65 men and 35 women) were examined. Control group consisted of 30 patients with arterial hypertension and coronary artery
Dzyak G.V. +5 more
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The American Journal of Cardiology, 1971 Ventricular fibrillation is the most common mechanism of sudden unexpected cardiac death in persons with asymptomatic or symptomatic coronary artery disease. The electrophysiologic mechanisms reviewed in this article include: automaticity of pacemaker fibers, transformation of nonpacemaker into pacemaker fibers, "injury" currents and reentry.
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Mechanisms of Ventricular Fibrillation
Japanese Heart Journal, 1966 Transition from a regular supraventricular or ventricular mechanism to fibrillation was recorded utilizing 2 ultramicroelectrodes.Fibrillation in the hypothermic dog heart was preceded by asynchronous repolarization of individual fibers. An early premature beat caused incomplete depolarization of some fibers (local block) and irregular spread of ...
Yoshio Watanabe, Leonard S. Dreifus
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Journal of Cardiac Arrhythmias, 2021 Malignant early repolarization as cause of sudden death has taken on great importance in recent years. It has been described as an entity capable of producing ventricular arrhythmic events, causing from episodes of syncope to sudden cardiac death ...
Javier Pinos Vásquez +3 more
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Ventricular Fibrillation Is a Sign of Life
Brazilian Journal of Cardiovascular Surgery, 2023 Ventricular fibrillation (VF) is a deadly rhythm problem. With asystole, it represents one of the most extreme emergencies that may engage vital prognosis within only few minutes if appropriated treatment is not instituted. It is learned in all medical schools worldwide that VF is not compatible with consciousness and sustained life. Moreover, at 37°C,
Dib, Nabil +2 more
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Atrial fibrillation and preexcitation - A licence to kill
Indian Pacing and Electrophysiology Journal, 2020 Atrial fibrillation becomes a potentially lethal arrhythmia in the presence of preexcitation because the rapid ventricular activation can result in ventricular fibrillation.
R. Sakthivel, Raja J. Selvaraj
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