Week 6: Lower Extremity Venous Scanning Flashcards
Insufficiency leads to chronic_____, too much venous pressure
venous hypertension
Purpose of a venous duplex exam is to directly visualize the veins for assessment of its _____
patency
What is patency?
openess
The pros of a venous duplex exam are:
- non invasive
- inexpensive
- quick (30 min average)
- high _____ & ______
sensitivity, specificity
What are the 2 main reasons to perform a venous duplex exam?
- rule out DVT
- detect a presence of a PE
More than ____ % of PE cases are caused by thrombi traveling form the lower extremeties.
90
Veins have a thinner ____ than arteries.
tunica media
The lower extremety venous system has 3 systems. What are they?
- deep system
- superficial system
- perforating veins
What are the characteristsics of deep system veins? (2)
What is the landmark to identify them?
- follow the arterial trees
- (for lower extremity) located in the muscular sheath
*landmark is “facia” - deep system veins are below the facia.
What are the characteristsics of superficial system veins? (3)
- does NOT have arterial counterpart
- is NOT encased in a muscular sheath
- located more superficial to the dermis area
What are the characteristsics of perforating veins? (2)
- connect superficial to deep
- superficial veins drain into deep vein via perforating veins
Name deep system veins knees below: (5)
- posterior tibial veins
- peroneal veins
- anterior tibial veins - directly branch off from popliteal vein
- popliteal vein
- tibioperoneal trunk - branch off into posterior tibial vein and peroneal vein
Name the 3 calf veins
-
posterior tibial veins
- more lateral
- empty the back/medial aspects of the leg into the tibioperoneal trunk
- located just posterior ro the medial malleous -
anterior tibial veins
- anterolateral
- begin at the anterior surface of the leg & run lateral course between the tibia & fibula -
Peroneal veins
- more central
- close to fibula
What are the characteristics of popliteal vein (pop v)?
- formed by the confluence of the ______ & ________.
- becomes the ________
tibioperoneal trunk, anterior tibial veins
superficial femoral vein
tibioperoneal trunk is formed by ______ & ________
posterior tibial veins, peroneal veins
What are the characteristics of superficial femoral vein?
- aka: ____1____ (used this term when performing LE venous exam)
- flow continues cephalad and becomes the __2__ at the confluence of the __3__ and __4__.
- femoral vein
- CFV
- profunda (deep) femoral vein
- superficial femoral vein
What are the characteristics of CFV (common femoral vein) ?
- __1__ joins/drains into the CFV just cephalad to the jointure of the __2__ and the _3__.
- CFV is __4__ to the common femoral artery
- GSV (greater saphenous vein)
- profunda femoral vein
- femoral vein
- medial
What are the characteristics of external iliac vein?
- slightly cephalad to the jointure of the __1__ and __2__ , called __3___
- __4__ becomes the external iliac vein
- joined by the __5__ (drains the gonadal areas) to form the common iliac vein
- GSV
- CFV
- saphenofemoral junction
- CFV
- internal iliac vein
____ formed by the confluence of the common iliac veins
IVC
The left iliac vein passes ____ to the proximal right common iliac artery to form the ICV
posterior
What is the longest vein in the body?
greater saphenous vein
What are the 2 superficial veins?
- greater saphenous vein aka: long saphenous vein
- lesser saphenous vein aka: short saphenous vein
What are the characteristics of GSV?
- aka: 1
- 2 vein in the body
- runs from the 3 to the 4 on the 5 side
- drains into 6
- easier to see/locate in 7 plane
- this vein is used for 8
- long saphenous vein
- longest
- inguinal region
- ankle
- medial
- CFV (common femoral vein)
- transverse
- graft
What are the charcteristics of lesser saphenous vein?
- aka: 1
- 2 in diameter than the GSV
- located in the 3 calf
- runs directly along the 4 of the back of the leg (from ankle to 5 )
- drains into the 6
- short saphenous vein
- smaller
- posterior
- center
- popliteal fossa
- popliteal vein