• Complete AV Canal
    • Common AV valve equally committed emptying into both ventricles
    • Moderate sized primum ASD
    • Moderate sized inlet VSD
    • Ventricles appear of normal size and are well balanced
    • Mild RVH
    • Mild right atrial dilation
  • Complete AV Canal
    • Common AV valve equally committed emptying into both ventricles
    • Small primum ASD
    • Large inlet VSD
    • Mild right ventricular dilation and hypertrophy
  • Complete AV Canal
    • Zoomed view of complete balanced AV canal
    • Common AV valve equally committed to both ventricles
    • Small primum ASD
    • Moderate inlet VSD
  • Complete AV Canal
    • Primum ASD with left to right shunting 
    • Mild right AV valve regurgitation
    • Mild left AV valve regurgitation
    • Moderate right atrial dilation 
    • Inlet VSD (shunting by color Doppler poorly profiled in this clip)
    • Common AV valve appears balanced opening equally over both ventricles
    • Balanced appearing ventricles without hypoplasia
  • Complete AV Canal
    • Zoomed color compare view of a complete balanced AV canal
    • Small primum ASD with left to right shunting
    • Moderate inlet VSD with bidirectional shunting
    • Mild right AV valve regurgitation
    • Mild left AV valve regurgitation

Echocardiographic Asssessment: Apical 4 Chamber

  • Primum ASD (size and direction of shunting)
  • Inlet (size and direction of shunting, peak velocity across VSD)
  • Common AV valve (morphology, balanced versus unbalanced, stenosis, regurgitation)
  • Ventricles (hypertrophy, dilation, function, balanced versus unbalanced)

  • Transducer placed on apical PMI (4th or 5th intercostal space)
  • Midclavicular line at the apical PMI (point of maximal intensity)
  • Notch at 3 o'clock