Transposition of the Great Vessels

Question 1

The Aorta Arises from the RV, and the Pulmonary Arteries arise from the LV. What congenital defect is this ?

Answer 1

Transposition of the Great Vessels

Question 2

What is the direction of blood flow under Transposition of the Great Vessels ?

Answer 2

Desaturated venous blood returning form the peripheral tissues is pumped back to the systemic circulation & oxygen rich pulmonary venous blood is pumped back into the pulmonary artery.

Question 3

A cyanotic patient with Transposition of the Great Vessels must have what in order to remain compatible with life?

Answer 3

Communication between the systemic circulation and pulmonary circulation such as:

• PDA
• ASD

Question 4

Emergency bedside procedure to help a new born who is cyanotic and we have high suspicions of Transposition of the Great Vessels?

Answer 4

• PGE1

- Balloon Atrial Septostomy to create communication between the atrium