Question

Coarctation of aorta is most commonly associated with:

• A. Bicuspid aortic valve
• B. PDA
• C. VSD
• D. ASD

Hint:

Think of the valve lesion that most often accompanies aortic narrowing.

Answer 1

The Correct Option is A

Step 1: Recall the definition. Coarctation of the aorta is a narrowing of the aorta, typically just distal to the origin of the left subclavian artery near the ductal region.
Step 2: Recall the commonest associated lesion. The most frequent cardiac association of coarctation is a bicuspid aortic valve, present in a large proportion of cases.
Step 3: Compare with the other options. A patent ductus arteriosus, VSD and ASD can occur with coarctation but are less frequently associated than the bicuspid aortic valve.
Step 4: Note the wider associations for context. Coarctation is also linked with Turner syndrome, but among the cardiac defects listed, the bicuspid aortic valve is the commonest.
Step 5: The correct answer is bicuspid aortic valve (option 1).