Chap 150 Renovascular Anomalies Flashcards Preview

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Flashcards in Chap 150 Renovascular Anomalies Deck (10):
1

what is middle aortic syndrome?

abdo aortic coarctation and hypoplasia

2

Where is MAS most often located

suprarenal then infra

3

What are associated disorders with MAS?

Neurofibromatosis-1, (25% of abdo ao coarc have NF-1
Williams syndrom, alagille syndomr
Maternal rubella
Takayasu (more likely arch or DTA
Umbilical artery catheterization

4

What vessels have associated stenosis?

Splanchnic 87%
RA 62%
Usually ostial

5

what are symptoms of MAS?

Lower extremity fatigue is infrequent
Intestinal angina 6%
Food aversion, weight loss
HTN
HA, seizure, epistaxis, visual disturances, AKI, bell’s palsy
Hemorrhagic stroke, HTN encephalopathy, FTT
LVH
Flash pulmonary edema

6

What is surgical management of MAS?

patch angioplasty
reimplant of visceral vessels
TA bypass

7

What size graft to use for bypass at different ages?

8-12mm children
12-16 early ADOLESCENTS
14-20 late adolescents and adults

8

When does axial growth stop?

age 9-10

9

How and when do you repair renal artery in children?

after age 3
internal iliac
(SV has aneurysmal degen)

10

What is the definition of HTN in children?

SBP or DBP >/= 95th percentile for sex age and hgt on 3 separate occasions