McGill Case 42: Difference between revisions

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[[File:E000626.jpg|thumb|600px|left|A middle aged woman treated for atrial fibrillation with a possible sinus node exit block (Mobitz 1).]]
[[File:E000742.jpg|thumb|600px|left|This is an electrocardiogram from a middle-aged woman treated for atrial fibrillation. The patient was doing well when this electrocardiogram was taken, and was taking digoxin and flecainide .
The electrocardiogram shows an irregular rhythm which appears to be sinus. The grouping of the QRS complexes suggests a Mobitz type I AV block. In this case though, no A V block is seen and this may represent a sinus node exit block.]]

Latest revision as of 05:43, 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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This is an electrocardiogram from a middle-aged woman treated for atrial fibrillation. The patient was doing well when this electrocardiogram was taken, and was taking digoxin and flecainide . The electrocardiogram shows an irregular rhythm which appears to be sinus. The grouping of the QRS complexes suggests a Mobitz type I AV block. In this case though, no A V block is seen and this may represent a sinus node exit block.