2. ◾ The venous drainage system of the lower
extremity consists of three sets of veins:
◾ Deep veins,
◾ Superficial veins
◾ Perforating veins.
◾ All veins contain delicate one-way valves
3. Great saphenous vein originates
from the medial side of the
dorsal venous arch, and then
ascends up the medial side of
the leg, knee, and thigh to
connect with the femoral vein
just inferior to the inguinal
ligament
Small saphenous vein originates
from the lateral side of the
dorsal venous arch, ascends up
the posterior surface of the leg,
and then penetrates deep fascia
to join the popliteal vein
posterior to the knee; proximal
to the knee, the popliteal vein
becomes the femoral vein.
4. ◾ They connect the
deep system with
the superficial
system
◾ They pass through
the deep fascia
◾ Guarded by valves-
unidirectional flow
from superficial to
deep veins
5. 1. Ankle perforators-may or
kuster
2. Lower leg perforators of
cockett-I,II,III
a)Posteroinferior to med
malleolus
b) 10cm above
med.malleolus
c) 15cmabove
med.malleolus
2. Gastrocnemius perforators
of Boyd
3. Mid thigh perforators of
Dodd
6. Venous return from leg is governed by
Arterial pressure
Calf musculovenous pump
Gravity
Thoracic pump
Valves in veins
7. Foot and calf muscles
act to squeeze blood
out of deep veins.
One way valve allow
only upward and
inward flow.
During muscle
relaxation blood is
drawn inward thru
perforating veins.
10. ANY RISK FACTOR INCREASEDVENOUS PRESSURE
DILATIONOFVEINWALLS
STRECHINGOFVALVES-VALVULAR INCOMPETENCE
REVERSALOF BLOOD FLOW
FAILUREOF MUSCLESTO PUMP BLOOD
VEINS DISTEND,ELONGATE,TORTOUS,POUCHED,INELASTIC
AND FRIABLE
11. ◾ Dilated,tortuous and elongated veins with
reversal of blood flow mainly due to valvular
incompetence
Examples
Varicose veins in legs
Hemorrhoids
Varicocele
Oesophageal varices
12. Age
Gender
Height
Heredity
Pregnancy
Obesity and overweight
Posture
13. Primary varicosities
Congenital incompetence/absence of valves
Weakness or wasting of muscles
Stretching of deep fascia
Inheritance with FOXC2 gene
Klippel-trenaunay syndrome
15. Dilated tortuous veins
Dragging pain worsening on prolonged standing/sitting
Night cramps
Aching pain is relieved at night on taking rest or elevation
of limbs
Ithcing,oedema,thickening and eczema of feet
Appearance of spider veins in affected leg.
Discoloration/ulceration
Skin above ankle may shrink (lipodermatosclerosis) b/c fat
underneath skin becomes hard.
Symptoms
16. Inspection:
Dilated veins: are present
in the medial aspect of leg
and the knee. Some time
they are visible in the thigh
also.
17. A saphena varix is a dilatation at
the top of the long saphenous vein
due to valvular incompetence. It
may reach the size of a golf ball or
larger.
The varix is:
soft and compressible
disappears immediately on lying
down
exhibits an expansile cough impulse
demonstrates a fluid thrill
19. ◾ Inverted beer bottle look
◾ Contraction of ankle skin and s/c tissue with
prominent edematous calf
23. 1. Cough impulse test:
This test should be done in standing position.The
examiner keeps the finger at SF junction and ask the
patient to cough. Fluid thrill, an impulse felt by fingers,
is indicative of “saphenofemoral incompetence”
24. 2. The Trendelenburg test:
Used to assess the competence of SFJ
Patient lies flat
Elevate the leg and gently empty the veins
Palpate the SFJ and ask the patient to stand whilst
maintaining pressure
Findings:
Rapid filling after thumb released→ SFJ is incompetent
Filling from below upwards without releasing thumb
→presence of distal incompetent perforators
26. 3. Tourniquet test
◾Ask the patient to lie down,
raise and drain leg
◾Place tourniquet approximately
over area of each perforator(
mid thigh, sapheno popliteal,
calf perforators)
◾If varicosities DO NOT refill that
perforator is incompetent
◾If varicosities DO refill continue
down leg
27. 4. Schwartz test
In standing
position,tap the
lower part of vein
Impulse felt on
saphenofemoral
junction
28. 5. Perthes Test
Empty the vein as above,
place a tourniquet around
the thigh, stand the patient
up.
Ask them to rapidly stand
up and down on their toes –
filling of the veins indicated
deep venous incompetence.
This is a painful and rarely
used test.
29. 6.Fegan’s test
Line of varicosities marked
Site where perforators pierce deep fascia-bulges
on standing circular depressions on lying
32. Injecting sclerosants into vein –sodium
tetradecyl sulphate
destruction of lipid membranes of
endothelial cells
shedding of endothelial cells
thrombosis,fibrosis,obliteration of veins
34. Saphenofemoral junction ligation and greater
saphenous stripping
Avulsion of varicosities-multiple ligation
Saphenopopliteal junction ligation and lesser
saphenous stripping
Surgical treatment-
Trendelenburg procedure