Vascular Flashcards
Peripheral lesion angioplasty alone vs stent placement should be placed on what medication after
ASA
ASA and plavix
Describe the viability of limbs with Rutherford grade 1, 2a, 2b and 3
S/s diff defining each
Viable
Marginally threated, needs prompt treatment
Immediately threatened, needs urgent treatment
Irrev damage, amputation
No findings
toes tingling, art duplex absent
weakness, paraesthesias beyond toes
paralysis, profound sens loss
duration after start of ischemia requiring fasciotomy
6h
Describe carotid contents
Duration definition of TIA
24h
PSV at 50% occlusion
at 70%
125
230
Annual risk of stroke for patients with asymptomatic CAS less than 70%
risk of recurrent stroke within one month?
1%
7.5%
Stenosis % precluding surgery for sympt patients
Target time after stroke
Asymptomatic stenosis % cutoff?
50%
2 weeks
70
4 boxes to check prior to CEA
ASA and plavix + statin
CTA
Cards risk strat
Consider laryngoscopy
Post CEA surveillance
6m for 2 years u/s
ACT target for CEA
hep bolus dosing
250
100mg/kg
classic reds finding for fibromuscular dyplasia
beads on a string
MC location of blunt thoracic aortic injury
MC unaffected artery for LE claudication below knee in diabetic
Peroneal
Symptoms of chronic mesenteric ischemia in young patient. kinked celiac
median arcuate ligament syndrome
CT angio vs formal in cold foot situation
CT will be quicker and decide whether you can pursue endo vs open
What is the double duct sign concerning the biliary tree?
What is the most common cause? Sometimes this…
panc and biliary duct dilations
ampullary masses; big gallstone
what condition can inhaled anesthetices, daspsone and inhaled nitric oxide all cause?
Tx?
what is the MOA?
methemoglobinemia
methylene blue
meth blue reduces iron ferric back to ferrous form
GS for pseudo aneurysm treatment at stick sites? Criteria?
thrombin injection; narrow necks and less than 5 cm… also no other complications ongoing
How long does concerning venous reflux last
0.5s
absolute contraindications to CVI intervention
clots, immobility, active infection
parameters for endovascular ablation
2mm-25mm diameter and <0.5cm from skin
when to use vein stripping or ligation for CVI
very little subQ
superficial thrombus more than 5cm????
plus one of the following risk factors
fondiparnaux
65+, male, prior DVT, cancer, nonvaricose vein thrombosis
when should filter be suprarenal
pregnancy
treatment for spider veins, what do they look like
sclerotherapy or laser therapy
what are the 2 varicosity sclerosants
sodium tetradecyl sulfate (Sotradecol) and polidocanol (Asclera)
which side is the great saphenous on ? small saph?
medial
lateral - small saph
preferred access for IVC filter placement
right common fem vein
typical distribution of CVI pain
what makes it better
what worsens it
thigh and knee
elevation
walking
describe DRIL procedure
besides steal, what are 2 other complications of AV fistula
CHF and venouse hypertension
what is usually the issue with AV fistula malfunction
venous outflow
creatinine clearance at which permanent AV access should be considered
25
relative position of brachial artery, cephalic vein, and basilic vein
describe a AV fistula formation
maturation time for av fistula autologous vs prosthetic
3-6m
2 weeks
MC reason for non-maturation in AV fistula
small vein
AV access clots at 2 years…. culprit?
intimal hyperplasia
autogenous v prosthetic 2 year patency
40-69 vs 18-30
