Ventricular fibrillation EKG examples: Difference between revisions
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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. | 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:Vwivfklein.jpg|800px|center]] | |||
[[Image:Vwivfklein.jpg| | |||
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The | 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| | [[Image:De-Rhythm_ventricular_fibrillation.png|center|800px]] | ||
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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| | [[Image:De-ECG_SR_to_VF_in_INF_MI.jpg|center|800px]] | ||
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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 first panel shows rapid paced ventricular beats followed by a low energy shock which induces | 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. | ||
[[Image:Ventricular fibrillation.jpg|center| | [[Image:Ventricular fibrillation.jpg|center|800px]] | ||
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The second panel below shows | The second EKG of the panel below shows no identifiable [[QRS complex]]es and P waves, bizarre waveform depicting ventricular fibrillation. Note the readings of the marker channel. | ||
[[Image: Venticular fibrillation 2.jpg|center| | [[Image: Venticular fibrillation 2.jpg|center|800px]] | ||
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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. | |||
[[Image:Ventricular fibrillation 3.jpg|center| | [[Image:Ventricular fibrillation 3.jpg|center|800px]] | ||
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The EKG monitor strip recorded during the testing of a [[defibrillator]] in a middle aged woman with [[ventricular tachycardia]] and a structurally normal heart 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]]. Note the [[QT interval]] in this patient of 500 ms which is long for the [[heart rate]] of 60/min. | |||
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| | [[Image:Ventricular fibrillation 4.jpg|center|800px]] | ||
==Sources== | ==Sources== | ||
Revision as of 14:35, 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 irregular heart rhythm, heart rate of more than 300 per minute, QRS duration unrecognizable and absent P waves depicting ventricular fibrillation.
The EKG below shows irregular heart rhythm, heart rate of more than 300 per minute, QRS duration unrecognizable and absent P waves depicting ventricular fibrillation.
The EKG below shows irregular heart rhythm, heart rate of more than 300 per minute, QRS duration unrecognizable and absent P waves depicting ventricular fibrillation .
The EKG below shows sinus rhythm converting into ventricular fibrillation wave pattern of irregular rhythm and unrecognizable QRS and P waves in all the leads depicting ventricular fibrillation.
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.
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.
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 EKG monitor strip recorded during the testing of a defibrillator in a middle aged woman with ventricular tachycardia and a structurally normal heart 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. Note the QT interval in this patient of 500 ms which is long for the heart rate of 60/min.
Sources
Copyleft images obtained courtesy of ECGpedia, http://en.ecgpedia.org/index.php?title=Special:NewFiles&offset=&limit=500