McGill Case 3: Difference between revisions

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[[File:E000607.jpg|thumb|600px|left|An elderly woman with a history of ventricular tachycardia.]]
[[File:E000703.jpg|thumb|600px|left|Intraventicular Conduction Defect
 
comment:
The ECG is in sinus rhythm and the QRS is markedly widened with a QRS duration of 260ms. The QRS seems split and gives the impression of ventricular bigemini but note that the second QRS deflection that looks like a PVC is in fact 200 ms after the onset of the first part of the QRS and hence too early for a PVC. Of interest this patient has recurrent ventricular tachycardia which may relate to his grossly widened QRS.
 
The progression of the block can be seen over a three year period.
 
comment from the web:
 
When presented as a puzzler the correct interpretation of this ECG was not received, only suggestions of ventricular bigemini where given.
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Latest revision as of 05:06, 10 February 2012

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This case report is kindly provided by Michael Rosengarten from McGill and is part of the McGill Cases. These cases come from the McGill EKG World Encyclopedia.


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Intraventicular Conduction Defect comment: The ECG is in sinus rhythm and the QRS is markedly widened with a QRS duration of 260ms. The QRS seems split and gives the impression of ventricular bigemini but note that the second QRS deflection that looks like a PVC is in fact 200 ms after the onset of the first part of the QRS and hence too early for a PVC. Of interest this patient has recurrent ventricular tachycardia which may relate to his grossly widened QRS. The progression of the block can be seen over a three year period. comment from the web: When presented as a puzzler the correct interpretation of this ECG was not received, only suggestions of ventricular bigemini where given.