heart defects

Question 1

embryonic period is`

Answer 1

wk 3-8

Question 2

which is more problematic - ASD or VSD, why?

Answer 2

ASD because they don’t tend to close spontaneously

Question 3

5 cyanotic heart defects

Answer 3

1: truncus arteriosus
2: transposition of great vessels
3: tricuspid atresia
4: tetralogy of Fallot
5: totally anomalous pulmonary venous return

Question 4

AVSD vs ASD or VSD

Answer 4

different timing. AVSD endocardial cushions wheras ASD or VSD is later

Question 5

which pharyngeal arches form whihc parts of which arteries

Answer 5

1st = small part of maxillary arteries
2nd = small part of stapedial arteries
3rd = R and L common carotids and proximal R and L internal carotids
4th = R side detaches from dorsal aorta subclavian. L side arch of aorta
6th = R side detaches from dorsal aorta pulmonary artery. L side ductus arteriosus

Question 6

which pharyngeal arch common carotids and prox internal carotids

Answer 6

3rd

Question 7

which is most dangerous cyanotic heart lesion. what tx

Answer 7

transposition of great vessels. prostaglandins immediately

Question 8

how do you get Persistent Pulmonary hypertension of the newborn

Answer 8

elevated pulmonary vascular resistance resulting in right-to-left shunting of blood and hypoxemia

Question 9

why would you

Question 10

tx for PPHN

Answer 10

Inhaled NO
Prostaglandin: PGE1 or PGI2
Others, sildenafil, milrinone