Venous Disease Flashcards
Superficial vein role
Valves that direct blood centrally to deep veins and oppose reflux
Deep vein role
Direct blood back to heart
Have valves in the limbs
Perforating vein role
Valves which direct flow from superficial to deep
Lower limb venous anatomy
Long saphenous vein-medial leg -> common femoral vein-sapheno-femoral junction in the saphenous opening
Short saphenous vein-posterior calf-> popliteal vein- short sapheno-popliteal in the popliteal fossa
Hunterian perforator- medial mid thigh
Cocketts perforators- medial leg
Physiology of venous return
Inspiration decreases interthoracic pressure
Muscle pumps in thigh, calf and feet
Muscles are contained within facia compartments-> pressure increases when the contract
-> veins are compressed-> blood pushed upwards
Reflux prevented by perforator valves
Muscle relaxation allows flow down perforators
Varicose veins epidemiology
2%
F:M 3:1
Less common in young
Primary varicose veins aetiology
Disputed
Familial element
Obesity
Multiple pregnancy
Secondary varicose veins aetiology
Less common
DVT
obstruction
AV fistula
Varicose veins symptoms
Discomfort that is relieved by elevation Bursting pain on exercise -> with tourniquet, Perthes test Restless legs Ankle swelling-> CVH Venous eczema/itching Superficial phlebitis Bleeding- internal/external Ulceration
Varicose veins signs
Skin changes-> lipodermatosclerosis -inflammation -pigmentation, haemosiderin -subcut thinkening -atrophy blanche Variceal pattern Blow outs, localised dilatiations Oedema
Investigations for venous disease
Duplex scanning, colour Doppler shows reflux
Venous pressure and volume
Conservative management of varicose veins and indications
Compression hose, pressure highest at ankle
- > mild symptoms
- > no skin changes
- > elderly
- > pregnant
Varicose veins-compression sclerotherpy and indications
Sclerosant used to cause sterile inflammation
Vein kept empty using compression-> lumen obliterated
Risk of embolism!
->isolated perforators
->vulval varices
-> telangectasia
Surgical management of varicose veins and indications
Ligate points of major incompetence and remove Remove saphenous trunk by stripping Endoluminal venous obliteration -> causal pain -> causal phlebitis -> bleeding -> skin changes -> ulceration