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Encyclopedia > Ebstein's anomaly
Ebstein's anomaly
ICD-10 Q22.5
ICD-9 746.2
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Ebstein's anomaly is a congenital heart defect in which the opening of the tricuspid valve is displaced towards the apex of the right ventricle of the heart. The annulus of the valve is still in normal position. The valve leaflets, however, are to a varying degree, attached to the walls and septum of the right ventricle. 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. There appears to be an increased risk of this abnormality in infants of women taking Lithium during the first trimester of pregnancy. Ebstein's anomaly was named after Wilhelm Ebstein. The following codes are used with International Statistical Classification of Diseases and Related Health Problems. ... The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ... The International Classification of Diseases for Oncology (ICD-O) is a domain specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. ... The Mendelian Inheritance in Man project is a database that catalogues all the known diseases with a genetic component, and - when possible - links them to the relevant genes in the human genome. ... The Diseases Database is a free website that provides information about the relationships between medical conditions, symptoms, and medications. ... MedlinePlus (medlineplus. ... eMedicine is an online clinical medical knowledge base that was founded in 1996. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... A congenital heart defect is a defect in the structure of the heart and great blood vessels of the newborn. ... In anatomy, the heart valves are valves in the heart that prevent blood from flowing the wrong way. ... The right ventricle is one of four chambers (two atria and two ventricles) in the human heart. ... The heart and lungs, from an older edition of Grays Anatomy. ... Wilhelm Ebstein (November 27, 1836, Jauer, Prussian Silesia - October 22, 1912) was a German physician. ...


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. Atrial septal defects (ASD) are a group of congenital heart diseases that involve the interatrial septum of the heart. ... An atrial septal defect (ASD) is a group of congenital heart diseases that involve the inter-atrial septum of the heart. ...

Electrophysiologic abnormalities

About 50% of individuals with Ebstein's anomaly have evidence of Wolff-Parkinson-White syndrome, secondary to the atrialized right ventricular tissue. Wolff-Parkinson-White syndrome (WPW) is a syndrome of pre-excitation of the ventricles due to an accessory pathway known as the bundle of Kent. ...

External links

  • Ebstein's Malformation information from Seattle Children's Hospital Heart Center



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