Ventricular fibrillation EKG examples: Difference between revisions

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==EKG examples==
==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]]
Copyleft image obtained courtesy of Wikipedia, http://en.wikipedia.org/wiki/File:Lead_II_rhythm_generated_ventricular_fibrilation_VF.JPG
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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 .
[[Image:De-Rhythm_ventricular_fibrillation.png|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:Rhythm_ventricular_fibrillation.png
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The EKG below shows [[sinus rhythm]] converting into ventricular fibrillation wave pattern of [[irregular heart rhythms|irregular rhythm]] and unrecognizable QRS and P waves in all the leads depicting ventricular fibrillation.
[[Image:De-ECG_SR_to_VF_in_INF_MI.jpg|center|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:ECG_SR_to_VF_in_INF_MI.jpg
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The EKG below shows 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.
The EKG below shows 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 last EKG of the panel below shows the termination of the ventricular fibrillation with a 20 joule shock and then ventricular pacing. Note the [[ST elevation]] of the paced beats.
The last EKG of the panel below shows the termination of the ventricular fibrillation with a 20 joule shock and then ventricular pacing. Note the [[ST elevation]] of the paced beats.
[[Image:Ventricular fibrillation 3.jpg|center|800px]]
[[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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The EKG monitor strip below shows induction of ventricular fibrillation with paced beats and a low energy T wave shock, termination of the ventricular fibrillation by the device and then the return to [[sinus rhythm]]. The tracing was made during the implantation of the [[defibrillator]] in a middle aged woman with [[ventricular tachycardia]] and a structurally normal heart. The recording was done during the testing of the [[defibrillator]] . 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|800px]]
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031733.jpg
Copyleft image obtained courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:E00031733.jpg
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Revision as of 15:38, 22 October 2012

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

For the main page on Ventricular fibrillation, click here

EKG examples

The EKG below shows 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.

The first panel shows 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

The second EKG of the panel below shows no identifiable QRS complexes and P waves, 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

The last EKG of the panel below shows the 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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