DefinitionBy Mayo Clinic staff
Ebstein's anomaly is a rare heart defect that's present at birth (congenital). In Ebstein's anomaly, your tricuspid valve — the valve between the chambers on the right side of your heart — doesn't work properly. Blood leaks back through the valve, making your heart work less efficiently. Ebstein's anomaly may also lead to enlargement of the heart or heart failure.
If you have no signs or symptoms associated with Ebstein's anomaly, careful monitoring of your heart may be all that's necessary. If signs and symptoms bother you, or if the heart is enlarging or becoming weaker, treatment for Ebstein's anomaly may be necessary. Treatment options include medications and surgery.
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