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PDA dependent circulation ..easy classification



PDA Provides Systemic Flow

Critical coarctation of the aorta
Interrupted aortic arch
Hypoplastic left heart syndrome
        Critical aortic stenosis

PDA Provides Pulmonary Flow

Pulmonary atresia
Critical pulmonic stenosis
Severe subpulmonic stenosis with
ventricular septal defect
Tricuspid atresia with pulmonic stenosis
 
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