Clinical Disorders: Difference between revisions

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* No delta wave
* No delta wave
==Ebstein==
==Ebstein==
[[File:E000403.jpg|thumb|ECG from a patient with Ebstein's anomaly showing huge P waves and low amplitude QRS waves. RBBB and T wave inversion are not present on this ECG.]]
[[File:E000403.jpg|thumb|300px|ECG from a patient with Ebstein's anomaly showing huge P waves and low amplitude QRS waves. RBBB and T wave inversion are not present on this ECG.]]
In Ebstein anomaly the tricuspid valve is inserted more apically than normal. This yields a very large right atrium. About 50% of individuals with Ebstein's anomaly have evidence of Wolff-Parkinson-White syndrome, secondary to the atrialized right ventricular tissue.
In Ebstein anomaly the tricuspid valve is inserted more apically than normal. This yields a very large right atrium. About 50% of individuals with Ebstein's anomaly have evidence of Wolff-Parkinson-White syndrome, secondary to the atrialized right ventricular tissue.


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#T wave inversion in V1-V4 and Q waves in V1-V4 and II, III and aVF.
#T wave inversion in V1-V4 and Q waves in V1-V4 and II, III and aVF.
#Q waves in II, III, AVF. These Q waves are thought to reflect fibrotic thinning of the right ventricular free wall and/or septal fibrosis with coexisting left posterior hemiblock<cite>khairy</cite>
#Q waves in II, III, AVF. These Q waves are thought to reflect fibrotic thinning of the right ventricular free wall and/or septal fibrosis with coexisting left posterior hemiblock<cite>khairy</cite>
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==Left and right bundle branch block==
==Left and right bundle branch block==