Endocardial Cushion Defect

Aka: Endocardial Cushion Defect, Atrioventricular Canal Defect

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II. Definitions

  1. Endocardial Cushion Defect
    1. Group of CHD conditions (Ostium Primum, common Atrioventricular Canal Defects)
    2. AV septum forms abnormally or AV valves (mitral valve, tricuspid valve) form abnormally

III. Risk Factors

  1. Down Syndrome

IV. Signs

  1. Isolated Ostium Primum ASD
    1. No Congestive Heart Failure unless severe mitral insufficiency
  2. Common Atrioventricular Canal Defects (CAVC) involving both ASD and VSD
    1. Congestive Heart Failure presentation after the second week of life

V. Diagnostics: Electrocardiogram

  1. Left Axis Deviation (and Superior axis)

VI. References

  1. Fujii and Lock in Cloherty (1991) Manual Neonatal Care, Little Brown, Boston, p. 257

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