Results 251 to 260 of about 996,792 (287)

Ventricular Fibrillation Frequency

Pacing and Clinical Electrophysiology, 2005
Background: 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, A. Kemeny, Rebecca A. Roeder, Michael P. Otlewski, Leslie A. Geddes   +4 more
openaire   +3 more sources

Independent risk factors for atrial fibrillation in a population-based cohort. The Framingham Heart Study.

Journal of the American Medical Association (JAMA), 1994
OBJECTIVE To determine the independent risk factors for atrial fibrillation. DESIGN Cohort study. SETTING The Framingham Heart Study. SUBJECTS A total of 2090 men and 2641 women members of the original cohort, free of a history of atrial ...
E. Benjamin, Daniel Levy, S. Vaziri, R. D’Agostino, A. Belanger, P. Wolf   +5 more
semanticscholar   +1 more source

Ventricular fibrillation masquerading as ventricular standstill

Critical Care Medicine, 1981
After 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 ...
Charles F. Dahl, Gordon A. Ewy, Charles W. Otto, Mary Zimmerman   +3 more
openaire   +4 more sources

Initiation of ventricular fibrillation by atrial fibrillation

European Heart Journal, 1994
We 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.
J. P. Giorgi, B. Brembilla-Perrot, J. P. Licho, P. Guenoun, A. Grentzinger   +4 more
openaire   +3 more sources

Primary Ventricular Fibrillation

New England Journal of Medicine, 1987
Despite 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 ...
openaire   +3 more sources

Idiopathic Ventricular Fibrillation

Journal of Cardiovascular Electrophysiology, 1997
Idiopathic 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.
openaire   +2 more sources

Spatiotemporal evolution of ventricular fibrillation

Nature, 1998
Sudden 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.
William L. Ditto, Francis X. Witkowski, L. Joshua Leon, Arthur T. Winfree, Patricia A. Penkoske, Wayne R. Giles, Mark L. Spano   +6 more
openaire   +3 more sources

Ventricular Fibrillation: Ablation of a Trigger?

Journal of Cardiovascular Electrophysiology, 2002
Ventricular 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
openaire   +3 more sources

Detection and prediction of the onset of human ventricular fibrillation: an approach based on complex network theory.

Physical review. E, Statistical, nonlinear, and soft matter physics, 2011
Ventricular fibrillation is a life-threatening cardiac arrhythmia which deserves quick and reliable detection as well as prediction from human electrocardiogram time series.
Xiang Li, Zhao Dong
semanticscholar   +1 more source

An unusual cause of ventricular fibrillation

The Lancet, 2009
In January, 2007, a 44-year-old previously healthy woman was admitted to the emergency department following resuscitation from ventricular fi brillation. Electrocardiogram showed ST depression, but coronary angio graphy showed no noteworthy stenosis. Transthoracic echo cardiography showed severe concentric left ventricular hypertrophy.
Vincent J. van Driel, Ido P. Kema, Karin G.F. Gerritsen, Ayse Demir, Jan Meulenbelt, Wilko Spiering   +5 more
openaire   +4 more sources