Coarctation of Aoa is most commonly associated with which of the following structural defects?
Patent Ductus Aeriosus (PDA)
Ventricular Septal Defect (VSD)
Atrial Septal Defect (ASD)
Bicuspid Aoic valve
Coarctation of Aoa is associated with Bicuspid Aoic Valve in 40% of patients. Clinical manifestations of coarctation depend on site & extent of obstruction and the presence of associated cardiac anomalies, most commonly a bicuspid aoic valve. Ref: Current Surgical 12th Edition, Page 426; Harrison's 16th Edition, Page 1387.