Ventricular fibrillation EKG examples: Difference between revisions

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'''For the main page on Ventricular fibrillation, click [[Ventricular fibrillation|here]]'''
'''For the main page on ventricular fibrillation, click [[Ventricular fibrillation|here]]'''
 
==EKG examples==
 
The EKG below shows [[irregular heart rhythms|irregular heart rhythm]], [[heart rate]] of more than 300 per minute, [[QRS duration]] unrecognizable and absent P waves depicting ventricular fibrillation.
 
[[Image:Lead II rhythm generated ventricular fibrilation VF.jpg|800px|center]]
 


==EKG Examples==
The series of EKGs below show three panels which are continuous and represent the testing of a Medronic model 7219 [[defibrillation|defibrillator]]. The channels are a surface EKG lead, a ventricular intra-cardiac recording and a marker channel from the device.
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The EKG below shows [[irregular heart rhythms|irregular heart rhythm]], [[heart rate]] of more than 300 per minute, [[QRS duration]] unrecognizable and absent P waves depicting ventricular fibrillation.
Shown below is an [[EKG]] depicting the rapid paced ventricular beats followed by a low energy shock which induces ventricular fibrillation. The shock is not on the [[T wave]].
 
 
[[Image:Vwivfklein.jpg|500px|center]]
 


[[Image:Ventricular fibrillation.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031731.jpg
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The  below is an EKG image of ventricular fibrillation showing irregular heart rhythm, [[heart rate]] of more than 300 per minute, QRS duration unrecognizable and absent P waves.
Shown below is the second EKG of the panel indicating no identifiable [[QRS complex]]es and [[P wave]]s, and a bizarre waveform depicting ventricular fibrillation. Note the readings of the marker channel.
 
[[Image:De-Rhythm_ventricular_fibrillation.png|center|500px]]


[[Image: Venticular fibrillation 2.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031732.jpg
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Shown below is an example of sinus rhythm converting into ventricular fibrillation wave pattern of irregular rhythm and unrecognizable QRS and P waves.
Shown below is the last EKG of the panel depicting termination of the ventricular fibrillation with a 20 joule shock and then ventricular pacing. Note the [[ST elevation]] of the paced beats.
 
[[Image:De-ECG_SR_to_VF_in_INF_MI.jpg|center|500px]]


[[Image:Ventricular fibrillation 3.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031733.jpg
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Shown below three panels are continuous and represent the testing of a Medronic model 7219 defibrillator. The channels are a surface EKG lead, a ventricular intra-cardiac recording and a marker channel from the device.
==References==
 
{{reflist|2}}
The first panel shows rapid paced ventricular beats followed by a low energy shock which induces VF. The shock is not on the T wave.
[[Category:Cardiology]]
 
[[Category:Up-To-Date cardiology]]
[[Image:Ventricular fibrillation.jpg|center|500px]]
[[Category:Up-To-Date]]
 
[[Category:Electrophysiology]]
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[[Category:Emergency medicine]]
The second panel below shows the VF, note the readings of the marker channel.
[[Category:Intensive care medicine]]
 
[[Category:Causes of death]]
[[Image: Venticular fibrillation 2.jpg|center|500px]]
 
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Shown below last panel shows the termination of the VF with a 20 joule shock and then ventricular pacing. Note the ST elevation of the paced beats.
[[Image:Ventricular fibrillation 3.jpg|center|500px]]
 
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Shown below is an EKG monitor strip recorded during the testing of a defibrillator in a middle aged woman with ventricular tachycardia and a structurally normal heart. The tracing was made during the implantation of the defibrillator and shows induction of VF with paced beats and a low energy T wave shock, termination of the VF by the device and then the return to sinus rhythm.
 
Note the QT interval in this patient of 500 ms which is long for the heart rate of 60/min.
 
[[Image:Ventricular fibrillation 4.jpg|center|500px]]
 
==Sources==
Copyleft images obtained courtesy of ECGpedia, http://en.ecgpedia.org/index.php?title=Special:NewFiles&offset=&limit=500
 
 
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Latest revision as of 18:37, 17 January 2013

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

For the main page on ventricular fibrillation, click here

EKG Examples

The series of EKGs below show three panels which are continuous and represent the testing of a Medronic model 7219 defibrillator. The channels are a surface EKG lead, a ventricular intra-cardiac recording and a marker channel from the device.

Shown below is an EKG depicting the rapid paced ventricular beats followed by a low energy shock which induces ventricular fibrillation. The shock is not on the T wave.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031731.jpg

Shown below is the second EKG of the panel indicating no identifiable QRS complexes and P waves, and a bizarre waveform depicting ventricular fibrillation. Note the readings of the marker channel.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031732.jpg

Shown below is the last EKG of the panel depicting termination of the ventricular fibrillation with a 20 joule shock and then ventricular pacing. Note the ST elevation of the paced beats.

Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031733.jpg

References

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