|
|
|
|
|
Ebstein's AnomalyEbstein's anomaly is a congenital heart defect in which the tricuspid valve is displaced towards the apex of the right ventricle of the heart. There is subsequent atrialization of a portion of the morphologic right ventricle (which is then contiguous with the right atrium). This causes the right atrium to be large and the anatomic right ventricle to be small in size. Related abnormalities While Ebstein's anomaly is defined as the congenital displacement of the tricuspid valve towards the apex of the right ventricle, it is often associated with other abnormalities. Anatomic abnormalities Typically, there are anatomic abnormalities of the tricuspid valve, with enlargement of the anterior leaflet of the valve. About 50% of individuals with Ebstein's anomaly have an associated shunt between the right and left atriums, either an atrial septal defect or a patent foramen ovale. Electrophysiologic abnormalities About 50% of individuals with Ebstein's anomaly have evidence of Wolff-Parkinson-White syndrome, secondary to the atrialized right ventricular tissue.
|
 |
|
| Copyright 2005-2009 OnPedia.com. All Rights Reserved |
|
|