Vascular Ch. 19 & 20 Flashcards
Information gathered about the superficial veins include
vein patency, position within the limb, depth, diameter
Vein mapping allows for selection of optimal vein can alter ____ and _____, and minimize the amount of
planned surgery, surgical approach, surgical dissection
GSV is a single trunk medially in thigh with several large tributaries at what percent
60%
The closed loop system can cause
difficulties for surgeons passing instruments
Main trunk of saphenous vein lies in saphenous compartment which is
bounded by saphenous fascia superficially and muscular fascia deeply
The intersaphenous vein connects
SSV and GSV
What do perforating veins do
perforate the muscular fascia and connect the superficial system to the deep system
What can be created if not litigated
arteriovenous fistula
Where does the basilic vein terminate and what does it form
brachial vein, axillary vein
What is a pitfall during the exam
very easy to compress the vein since it is so superficial
If the vein appears elliptical, most likely due to
too much pressure
When GSV is in saphenous compartment, what does it appear as
egyptian eye
Dilated, tortuous portions of the saphenous system are called
varicosities
What is recanalization
previously thrombosed vein becomes partially or completely patent
What do CVIs focus on
valvular disorders only
Chronic venous insufficiency is an ______ because it fails to differentiate between ____ and ______
incomplete term, valvular, obstructive disease
Superficial epigastric vein (SEV) of saphenofemoral junction is a
tributary used as a landmark for thermal ablation treatment
Incompetent valves allow
abnormal retrograde flow
CVI and varicose veins are a common finding and often associated with
telangiectasias
Lymph edema will appear how on ultrasound
enlarged hypoechoic channels in the lower leg and foot
What is recommended in order to minimize patient discomfort
exam order
What is the first thing on the exam order
most symptomatic or affected thigh
What can also be used to screen for reflux
transverse color flow images
What can cause venous filling
reverse venous flow
What is another compression method
parana maneuver
What is most commonly associated with chronic venous obstruction during B-mode ultrasound
fibrous strands observed with a vessel lumen
What is the normal valve closure time for saphenous veins
<500ms
What is the normal valve closure time for femoral vein
<1000ms
What does PPG emit
infrared light
What is recovery time for PPG
> 20s
During PPG, what is suspected with refill times <20s
reflux
Diagnostic criteria for APG, residual volume (RV) is normally
<20%-35%
What is in situ
use saphenous and stays in vascular bed, original area
What is ligation
tying of a vein through a small incision in the skin to prevent pooling of blood
What is another name for the cranial extension of the small saphenous vein and where does it terminate
vein of giacomini, popliteal vein (20% above the popliteal fossa)
Very light pressure should be used so as not to
compress the vessel
