McGill Case 65: Difference between revisions

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[[File:E0007651.jpg|thumb|600px|left|This is an interesting set of tracings, as it shows the effect of adenosine on AV conduction, but in addition the effect on atrial refractoriness.]]
[[File:E000765_65.jpg|thumb|600px|left|The rhythm is atrial flutter 4:1 block with and atrial rate of about 270 and a ventricular rate of 68/min.]]
 
[[File:E0007652.jpg|thumb|600px|left|The first tracing is clearly atrial flutter with an atrial rate of 270/min, and a ventricular rate of 135/min. The second recording shows much faster atrial activity (Note the distance between the turquoise arrows and the yellow arrows which mark out 3 atrial cycles). The second tracing is either atrial fibrillation (a know result of adenosine) or a faster atrial flutter (type II flutter) with variable block. Both of these effects could be seen as a result of the decrease in the atrial refractory period by the stimulation of the adenosine.]]

Latest revision as of 01:10, 15 February 2012

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.


Previous Case: McGill Case 64 | Next Case: McGill Case 66

The rhythm is atrial flutter 4:1 block with and atrial rate of about 270 and a ventricular rate of 68/min.
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