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Table 2 Echocardiographic findings in Ebstein's Anomaly

From: Ebstein's Anomaly: Anatomo-echocardiographic correlation

Right ventricular region Echocardiographic finding   N = 50
Inflow Tract Tethering I
II
III
11
21
18
  Tricuspid Valve dysplasia   50
  Dilatation of the anatomic atrioventricular ring Mild
Moderate
Severe
13
12
25
  Functional tricuspid opening Low
Dilated
Stenotic
50
39
11
  Tricuspid regurgitation Mild
Moderate
Severe
6
16
28
  Ventricular wall Aneurysmal sac
Normal
42
8*
Trabecular portion Uncovered 100% 10
  Covered by leaflet tethering 25%
50%
100%
10
15
15
  Multiple muscular bands in RV apex   45
Outflow tract (infundibulum) Normal
Stenotic
Dilated
  8
11
31
  Pulmonary Valve Normal
Stenosis
Atresia
45
7
0
Associated abnormalities   ASD (Ostium secundum) 24
   Patent foramen ovale 11
   ASD + VSD 6
   VSD 2
   ISA 1
   Mitral valve prolapse 4
   Unicuspid mitral valve 1
   Supravalvular mitral membrane 1
   Noncompacted left ventricle 1
   Left ventricle with moderator band 1
   Right Cor triatrium 1
   Transposition of great vessels* 5
   Left ventricular double outlet * 3
  1. * Discordant ventriculoarterial connection. RV: Right ventricular; ASD: Atrial septal defect; VSD: Ventricular septal defect; ISA: Interatrial septal aneurysm.