McGill Case 34: Difference between revisions

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[[File:E000619.jpg|thumb|600px|left|In a 20 year old woman with Ebstien's anomaly.]]
[[File:E000734.jpg|thumb|600px|left|This is an electrocardiogram from a young woman with Ebstein's anomaly.
In this condition the right atrium is enlarged with downward a displacement of the tricuspid valve into the right ventricle. This partially explains the tall peaked p waves in the inferior leads. Note the P wave in lead II is greater than 2 mm in height. There is also a first-degree heart block which is often seen with these patients. Curiously higher grade blocks are rare. The QRS complex shows a right axis deviation and a terminal S wave in the V 6 derivation. Atypical right bundle branch block can be seen with this condition.]]

Latest revision as of 05:32, 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 young woman with Ebstein's anomaly. In this condition the right atrium is enlarged with downward a displacement of the tricuspid valve into the right ventricle. This partially explains the tall peaked p waves in the inferior leads. Note the P wave in lead II is greater than 2 mm in height. There is also a first-degree heart block which is often seen with these patients. Curiously higher grade blocks are rare. The QRS complex shows a right axis deviation and a terminal S wave in the V 6 derivation. Atypical right bundle branch block can be seen with this condition.