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Management of ASD

Definitive treatment of ASD is closure with patch of defect.
Repair of ASD defect is indicated
  • When there is significant shunt from left atrium to left ventricle with pulmonary blood flow to systemic blood flow is >2:1.
Contraindications to surgical treatment are
  • Small ASD with bivial shunt
  • ASD with severe PAH, and right to left shunt pulmonary  vascular resistance to systemic vascular resistances >0.7:1