Pathological specimen and ultrasound image of a heart with Ebstein's anomaly: Abbreviations: RA: right atrium; ARV: atrialized right ventricle; FRV: functional right ventricle; AL: anterior leaflet; SL: septal leaflet; LA: left atrium; LV: left ventricle; asterisk: grade II tethering of the tricuspid septal leaflet
Ebstein's anomaly is a congenital heart defect in which the septal and posterior leaflets of the tricuspid valve are displaced downwards towards the apex of the right ventricle of the heart.[1] EA has great anatomical heterogeneity that generates a wide spectrum of clinical features at presentation and is complicated by the fact that the lesion is often accompanied by other congenital cardiac lesions.[2] It is classified as a critical congenital heart defect[3] accounting for less than 1% of all congenital heart defects presenting in around 1 per 200,000 live births.[4] Ebstein's anomaly usually presents with a systolic murmur (sometimes diastolic) and frequently with a gallop rhythm.[5]
^Boston, Umar S.; Bayle, Ken; Kumar, T. K. Susheel; Knott-Craig, Christopher J. (2020). "107. Neonatal Ebstein's Anomaly". In Raja, Shahzad G. (ed.). Cardiac Surgery: A Complete Guide. Switzerland: Springer. pp. 971–980. ISBN978-3-030-24176-6.
^Engle, Mary Allen; Payne, Torrence P. B.; Bruins, Caroline; Taussig, Helen B. (June 1950). "Ebstein's Anomaly of the Tricuspid Valve: Report of Three Cases and Analysis of Clinical Syndrome". Circulation. 1 (6): 1246–1260. doi:10.1161/01.CIR.1.6.1246. PMID15414543. S2CID13187818.