SCORE VASCULAR 2 Flashcards
Exposure of the subclavian artery for a carotid-subclavian bypass may require ligation of what arteries?
May have to ligate the thyrocervical trunk and some costocervical arteries
Where are spontaneous carotid artery dissections typically found?
at the distal artery as the artery transitions from muscular to elastic.
Name some of the common things you would look for in a routine hypercoagulability panel
- Protein C & S
- antithrombin III
- Factor V leidin
- protthrombin g20210
- antiphospholipid Abs
- homocysteine levels
State the importance of vWF in both primary and secondary hemostasis
in primary hemostasis, it allows platelets to adhere to the subendothelium of the injured vessel wall.
In secondary hemostasis, it prevents degradation of factor VIII
Which nerve exits through the MIDDLE scalene muscle?
the long thoracic nerve (which goes to serratus anterior)
Which neurovascular structures pass through the scalene triangle?
- the subclavian artery and brachial plexus
- the scalene triangle is bound anteriorly by the anterior scalene muscle and posteriorly by the middle scalene muscle and inferiorly by the first rib
Failure of AV fistula maturation has been reported as high as what?
60%!
In thinking about a fistula which is unable to be accessed, what kind of things would you be thinking about?
- failure to mature due to:
- anatomic cause
- fistula may be too deep for cannulation(and needs to be superficialized)
If you are going to ligate a carotid artery following trauma for instance, what is the distal stump pressure which has been proposed as adequate to reduce risk of postoperative stroke?
70 mmHg
Approximately what percentage of first-order male relatives of patients with known AAA will also have a AAA?
25%
In general, a healthy patient with a AAA >5 cm is generally counseled to undergo elective repair to eliminate the risk of rupture, which is greater than what per year?
greater than 5% per year and increases with increasing diameter
Describe your sizing guidelines when deciding how to treat an infected aortic graft with a NAIS procedure:
Lets say you have a 10-mm femoropopliteal vein…
If the aortic neck diameter is:
10-17 mm: you can just end-to-end anastamose
18-26 mm: pantaloon vs aortic plication vs patching techniques
>28mm: thats too small and you should do extra-anatomic bypass
The antithrombotic effect of warfarin, or the inability to expand or form clots, is not present until approximately what day?
5th day of therapy
True or False: The anterior compartment of the lower lef is most sensitive to ischemia and thus sensory deficits over the dorsum of the foot are an early neurologic sign of acute vascular insufficiency
TRUE
True or False: Angina pectoris is a predictor of mortality or morbidity following AAA repair.
FALSE
Angina pectoris is extremely common in patients with AAA, but does not appear to be a predictor of morbidity or mortality after repair (Probably because they have correctable cardiac disease that gets treated prior to AAA resection).
