Chapter 26: Transposition of the Great Arteries or Vessels (TGA or TGV) (Children)

Question 1

Transposition of the great arteries or vessels (TGA or TGV)

Answer 1

cyanotic

• conal-truncal defect
• occurs in utero when the signals cross, and instead of twisting, there is a septation and the aorta arises from the right side of the heart and the pulmonary artery arises from the left
• In cases of transposition of the great arteries, these vessels arise from the wrong ventricle. They are “transposed” from their normal position so that the aorta arises from the right ventricle and the pulmonary artery from the left ventricle.

Question 2

Signs and Symtoms

Answer 2

can appear at birth or soon afterwards

• cyanosis
• SOB
• poor feeding
• eventual clubbing of the fingers and toes
• murmur not always present

Question 3

Diagnosis

Answer 3

based on signs and diagnostic tests

• pulse oximetry, ECH, echocardiogram, chest x-ray, and cardiac cath
• if echocardiogram done before birth it is called fetal echocardiogram

Question 4

Nursing Care

Answer 4

focuses on post-operative management of child

-followed up by a health0care provider throughout life to monitor for signs of stenosis around the anastomosis sites

Question 5

Surgical Care

Answer 5

severity of signs and symptoms direct the timing of treatment
-TGA in all cases must be surgically corrected, typically with an arterial switch operation (ASO)

Question 6

Arterial Switch (ASO)

Answer 6

the great arteries (main pulmonary artery and aorta) are divided from the LV and RV respectively
-surgical procedure for TGA