CHD

Question 1

State the 5 most common causes of acyanotic CHD

Answer 1

• VSD: most common, accounting for 30%
• ASD
• PDA
• Coarctation of the aorta
• Aortic valve stenosis

Question 2

Which CHD may present in adulthood?

Answer 2

ASD

Question 3

State the 3 most common causes of cyanotic CHD

Answer 3

• Tetralogy of Fallot
• Transposition of the great arteries (TGA)
• Tricuspid atresia

Question 4

When are TGA and Fallot’s normally picked up?

Answer 4

• TGA: more common at birth

- Fallot’s: 1-2mths

Question 5

What determines the extent of cyanosis in pulmonary valve stenosis?

Answer 5

• Severity of stenosis

- Coexistent defects