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DVT423- TH6

USIDMS Extremity Bypass Grafts

QuestionAnswer
Common types of graft material used... Synthetic: PTFE (poor long-term), Autogenous (preferred, better long term), Cadaver (Last choice)
Which type of autogenous vein graft stays in its native bed? In Situ
Which type of autogenous vein graft does not get removed? In Situ
Which type of autogenous vein graft has to use a valvulatome? In Situ
Which type of autogenous vein graft has the large end of the vein at the proximal anastomosis? In Situ
Which type of autogenous vein graft has to remove the GSV? Reversed
Which type of autogenous vein graft flips the vein upside down in the patients leg? Reversed
Which type of autogenous vein graft has the small end of the vein at the distal anastomosis? In Situ
Which type of autogenous vein graft has the small end of the vein at proximal anastomosis? Reversed
Which type of autogenous vein graft has the large end of the vein at the distal anastomosis? Reversed
What velocity and velocity ratio indicates a graft stenosis? ≥150 cm/s or ≥2.0
What velocity should a graft stay above? 40-45 cm/s
What are the two main types of stents and describe them? Palmaz- balloon deployed, Wallstent- self-expanding
Arteriography is described as.... Catheter inserted into a artery, injects dye(usually CFA or brachial), provides road maps
Intravascular ultrasound is described as.... medical imaging methodology using a specially designed catheter with a miniaturized ultrasound probe attached to the distal end
Angioscopy is described as.... Not ultrasound, but visualizes the interior of blood vessels.
What images the vessels by using magnetic fields to excite hydrogen atoms in the body? Magnetic Resonance Angiography (MRA)
What are Magnetic Resonance Flow Meters? MRI has the capability of measuring flowing blood (the rate), tells the difference between venous (MRV... brain) and arterial (MRA).
What is the gold standard for looking for brain activity/death? Brain SPECT (NucMed)
What are the four steps of treating vascular disease? 1. Lifestyle Modification 2. Pharmacologic Treatment 3. Surgical Treatment 4. Endovascular Treatment
What are two different reasons for Warfarin to be given? 1. thrombolytic therapy 2. Atrial Fibrillation
What happens to blood pressure when a patient takes: Ace Inhibitors, Beta Blockers, & Calcium channels blockers? Blood pressure drops
What happens to blood pressure when a patient takes a vasodilators such as Nitroglycerine? Blood pressure drops
What happens to blood pressure when a patient takes a vasoconstrictor such as Dopamine & Norepinephrine? Blood pressure raises
Created by: thollander