Diagnosis of Ebstein malformation of the tricuspid valve

Diagnosis of Ebstein malformation of thetricuspid valve

Diagnosis of Ebstein malformation of the tricuspid valve require the distance between insertion sites of the two AV valves greater than

[A] 4 mm/m2
[B] 6 mm/m2
[C] 8 mm/m2
[D] 10 mm/m2

Diagnosis of Ebstein malformation of the tricuspid valve

  • Diagnosis of Ebstein malformation of thetricuspid valve
  • Diagnosis of Ebstein malformation of the tricuspid valve require the distance between insertion sites of the two AV valves greater than – 8 mm/m2
  • A distance between insertion sites of the two AV valves greater than 8 mm/m2 is required for the diagnosis of Ebstein malformation of the tricuspid valve, or a maximum displacement of more than 20 mm in an adult
Ebstein16

Luis Muñoz-Castellanos et al, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Internal view of the left ventricle shows an anomalous muscular band that joins the free wall with the ventricular septum (stylus) in a heart with Ebstein’s anomaly.

The echocardiographic image shows an anomalous band in the left ventricle similar to that of the anatomic specimen.

Note the tethering of the tricuspid septal leaflet (asterisk) to the ventricular septum.

LAA: Left atrial appendage;

AMB: Anomalous muscular band.