Results 261 to 270 of about 164,585 (312)
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Ventricular Fibrillation Frequency
Pacing and Clinical Electrophysiology, 2005Background: Ventricular‐fibrillation (VF) wave frequency is known to decrease with prolonged, untreated VF. VF wave frequency is used as an algorithm to identify VF in AEDs and ICDs; yet the nature of the frequency change is not appreciated. Methods: In this study, anesthetized pigs were used and VF was induced electrically.
J, Callihan +4 more
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Idiopathic Ventricular Fibrillation
Herz Kardiovaskuläre Erkrankungen, 2007Idiopathic ventricular fibrillation (IVF) is responsible for a sizable part of sudden cardiac death (SCD). Furthermore, it has a high recurrence rate. Recent publications have shown that IVF is often caused by premature ventricular contractions (PVCs) arising from the right ventricular outflow tract (RVOT) or the Purkinje system.
Roland R, Tilz +4 more
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Initiation of ventricular fibrillation by atrial fibrillation
European Heart Journal, 1994We report the case of a patient who developed spontaneously a ventricular fibrillation during atrial fibrillation, 8 min after a perfusion of isoproterenol was stopped. Two mechanisms could explain the ventricular arrhythmia: silent ischaemia and a long-short cycle sequence just before ventricular fibrillation.
B, Brembilla-Perrot +4 more
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Idiopathic Ventricular Fibrillation
Journal of Cardiovascular Electrophysiology, 1997Idiopathic Ventricular Fibrillation. Idiopathic ventricular fibrillation is defined as cardiac arrest in the absence of structural heart disease and other identifiable causes of ventricular fibrillation. It occurs in 1% to 9% of survivors of out‐of‐hospital cardiac arrest. The mean age of these patients is 35 to 40 years, and 70% to 75% are male.
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Primary Ventricular Fibrillation
New England Journal of Medicine, 1987Despite years of observation in coronary care units, there is still considerable uncertainty about the short-term and long-term prognostic implications of ventricular fibrillation in patients with ...
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Ventricular fibrillation masquerading as ventricular standstill
Critical Care Medicine, 1981After the induction of ventricular fibrillation (VF) in 29 animals, ECGs were serially recorded to determine whether a very low amplitude or a straight line ECG could occur in some leads while coarse fibrillatory waves were present in the other leads. Ventricular fibrillation was electrically induced via a transvenous catheter electrode advanced into ...
G A, Ewy +3 more
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Spatiotemporal evolution of ventricular fibrillation
Nature, 1998Sudden cardiac death is the leading cause of death in the industrialized world, with the majority of such tragedies being due to ventricular fibrillation. Ventricular fibrillation is a frenzied and irregular disturbance of the heart rhythm that quickly renders the heart incapable of sustaining life.
F X, Witkowski +6 more
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Ventricular Fibrillation: Ablation of a Trigger?
Journal of Cardiovascular Electrophysiology, 2002Ventricular Fibrillation: Ablation of a Trigger? We report the case of a patient with recurrent ventricular fibrillation (VF) and no evidence of structural heart disease. VF was consistently initiated by a relatively early‐coupled premature ventricular contraction with identical morphology on each occasion.
Saliba W, Karim AA, Tchou P, Natale A
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Idiopathic Ventricular Fibrillation
2010Ventricular fibrillation (VF) in the absence of structural heart disease is classified as ’idiopathic ventricular fibrillation’or ’primary electrical disease’. In those cases the arrhythmogenic substrate should in principle be looked for in the excitation and conduction properties of the heart.
Postema, Pieter G. +2 more
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