2 - Paeds - CVS - Coarctation of Aorta Flashcards Preview

CP2 > 2 - Paeds - CVS - Coarctation of Aorta > Flashcards

Flashcards in 2 - Paeds - CVS - Coarctation of Aorta Deck (8):
1

how does it happen?

when DA closes, aorta can also be constricted - severe LV outflow obstruction (and commonest cause of collapse)

2

classical presentation of neonate

1st day usually normal
acute circulatory collapse and shock when duct closes on day 2

3

physical signs

sick baby, severe HF, absent femoral pulses, severe metabolic acidosis
?murmur ULSE

4

Ix

CXR -cardiomegaly from HF and shock
ECG - normal

5

mgmt - 3 steps

resuscitate
prostaglandins
surgical repair

6

surgical approaches? what about balloon angioplasty?

angioplasty =/- stent to correct the area

sometimes open surgery - resection, anastomeses, bypass graft etc

balloon angioplasty appears to only buy time

7

3 associations with coarctation of aorta

bicuspid aortic valve
VSD
Turners syndrome (females, only one X chromosome)

8

describe bicuspid aortic valve

most common congenital valve deformity - 1-2% of population
often aSx - can calcify later in life > varying stenosis and murmur, eventually > aortic regurg and need for surgery

these patients lack stamina and tire easily

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