Ventricular Fibrillation: Difference between revisions

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m (New page: {{Chapter|Ventricular Arrhythmias}} {{Arrhythmias| | name = Ventricular Fibrillation (VF or V-fib) | locatieImage = | atrial_frequency = 60-100 bpm | ventricular_frequency = 400-600 bpm |...)
 
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| p_wave = AV-dissociation
| p_wave = AV-dissociation
| adenosine = none
| adenosine = none
| example = An example of a ventricular fibrillation [[Image:Rhythm_ventricular_fibrillation.png|250px|Ventricular Fibrillation (VF or V-fib)]]
| animation = <flashow>http://nl.ecgpedia.org/images/8/8a/TenTusscherVF.swf|width=250|height=250|quality=best|align=right||</flashow>  
| example2 = Seven sinus beats are follow by a ventricular extrasystole (with R on T phenomenon), resulting in ventricular fibrillation [[Image:ECG_SR_to_VF_.jpg|250px|Initiation of ventricular fibrillation on a 12 lead ECG]]
| animation = <flash>file=TenTusscherVF.swf|width=250|height=250|quality=best|align=right||</flash>  
| animationdesc = '''This movie shows a computer model of ventricular fibrillation in the human heart.<cite>tentusscher</cite>''' Read [[Copyright|this]] if you want to use this image in a presentation. [[Media:TenTusscherVF.swf|Link to the file / enlargement]]
| animationdesc = '''This movie shows a computer model of ventricular fibrillation in the human heart.<cite>tentusscher</cite>''' Read [[Copyright|this]] if you want to use this image in a presentation. [[Media:TenTusscherVF.swf|Link to the file / enlargement]]
}}
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Ventricular fibrillation (VF or V-fib) is chaotic depolarisation of the ventricles. Mechanically this results in an arrested cardiac pump function and immediate death. VF can only be treated by immediate defibrillation. If you consider ventricular fibrillation in a conscious patient, than you should look for a technical problem with the ECG, eg. movement or electrical interference.
Ventricular fibrillation (VF or V-fib) is chaotic depolarisation of the ventricles. Mechanically this results in an arrested cardiac pump function and immediate death. VF can only be treated by immediate [[defibrillation]]. If you consider ventricular fibrillation in a conscious patient, than you should look for a [[Technical Problems|technical problem]] with the ECG, eg. movement or electrical interference.
{{clr}}
A comprehensive history of research into ventricular fibrillation has been written by Jalife.<cite>Jalife</cite>
==Examples==
<gallery>
Image:Rhythm_ventricular_fibrillation.png|Ventricular Fibrillation (VF or V-fib)
Image:ECG_SR_to_VF_in_INF_MI.jpg|VF develops in a patient with an [[inferior MI]]
Image:ECG_SR_to_VF_.jpg|Seven sinus beats are follow by a ventricular extrasystole (with R on T phenomenon), resulting in ventricular fibrillation
</gallery>
==References==
<biblio>
#Jalife pmid=10845083
</biblio>

Latest revision as of 08:13, 24 February 2010

This is part of: Ventricular Arrhythmias
Ventricular Fibrillation (VF or V-fib)
{{{locatieafbeelding}}}
Atrial rate 60-100 bpm
Ventricular rate 400-600 bpm
Regularity irregular
Origin ventricles
P-wave AV-dissociation
Effect of adenosine none
Example ECG: {{{example}}}
Example ECG2: {{{example2}}}

Ventricular fibrillation (VF or V-fib) is chaotic depolarisation of the ventricles. Mechanically this results in an arrested cardiac pump function and immediate death. VF can only be treated by immediate defibrillation. If you consider ventricular fibrillation in a conscious patient, than you should look for a technical problem with the ECG, eg. movement or electrical interference. A comprehensive history of research into ventricular fibrillation has been written by Jalife.[1]

Examples

References

  1. Jalife J. Ventricular fibrillation: mechanisms of initiation and maintenance. Annu Rev Physiol. 2000;62:25-50. DOI:10.1146/annurev.physiol.62.1.25 | PubMed ID:10845083 | HubMed [Jalife]