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VARICOSE VEINS
Literature overview AMBREEN AMNA
BMS02100005
DEFINATION
• VARICOSE VEINS are dilated , usually tortuous subcutaneous veins greater than or equal to 3mm in diameter measured in upright position with demonstrable reflux.
Varicose veins
ANATOMY OF VENOUS SYSTEM OF LEGS
• The venous system of lower limb consists of 1) Superficial veins :- They are GREAT & SMALL saphenous
veins.2) Deep veins:- They include tibial venae comitantes,
popliteal & femoral veins.3 ) Perforators:- May , Cockett , Boyd , Dodd
SUPERFICIAL VEINS
PERFORATORS
DEEP VEINS
PATHOPHYSIOLOGY
• The venous pressure in a foot vein on standing is equivalent to the height of a column of blood extending from the heart to the foot e.g. approx 100 mmHg.
• To enable blood to be returned against gravity CALF MUSCLE PUMP(soleus muscle i.e. peripheral heart) is essential.
• During calf muscle contraction e.g. walking deep veins are compressed & they force blood into popliteal & crural veins
PATHOPHYSIOLOGY (Contd..)
• The VALVES only allow blood to pass in the direction of heart.
• Now, pressure rises to 200-300 mmHg during muscle contraction.
• During muscle relaxation the pressure falls.• Blood from the superficial veins pass into deep
veins through saphenous junction and the perforating veins.
PATHOPHYSIOLOGY
Varicose veins may develop due to 1) PRIMARY VALVE INCOMPETENCE :- congenital absence of venous valves congenital defect in venous valve due to dysfunctional smooth muscle cell proliferation,
collagen deposition, decreased elastin content & increased matrix metalloproteinase's.
2) SECONDARY VALVULAR INCOMPETENCE :- due to post thrombotic limb, and congenital anomalies
such as Klippel-Trenaunay syndrome, multiple AV fistulae
EPIDEMIOLOGY
The adult prevalence of visible varicose vein is 25-30 % in women & 15% in men.
RISK FACTORS :- 1) geographical : more common in
western population, may be diet related. 2) Gender :- Women > Men 3) Age :- Increase with age
EPIDEMIOLOGY (CONTD..)
4) Body mass & height :- Increase body mass index & height
increases prevalence of varicose veins. 5) Pregnancy :- Increase risk[ hormonal effect } 6 )Family history :- Positive family history
increases the risk 7) Occupation & Lifestyle factors :- Increase risk
in smokers, patients who suffer constipation & prolonged standing
CEAP CLASSIFICATION
CLINICAL FEAUTURES
• EARLY SYMPTOMS :- Aching & heaviness Ankle swelling Itching • LATE SYMPTOMS:- skin changes lipodermatosclerosis venous ulceration bleeding marjulin ulcer{ignored prolonged ven ulcer transforming
malignant changes ,,,,,SCC }
SIGNS • Tortuous dilated subcutaneous veins• Telengectasia • Reticular veins • Saphena-varix• Atrophic blanche• Corona phlebectasia • Pigmentation ; ulceration • Eczema ; Lipodermatosclerosis• Dependent pitting edema
CLINICAL EXAMINATION
• The patient should be standing , exposed from umbilicus to foot.
• Look for the extent and distribution of varicose vein.
• Long saphenous varicose veins• Antero-lateral tributary of Long saphenous vein• Short saphenous varicose vein• Communicating vein varicosity
LOOK FOR :-
• Swelling (localized or general? ) • Color changes• Pigmentation • Eczema • Scar marks • Ulceration• Hair distribution• Toe nails• Cough impulse for saphena-varix
PALPATION
• Temperature• Tenderness• Palpate along the distribution of long & short
saphenous veins• Morrissey's Cough impulse test• Brodie Trendelenburg test• Multiple Tourniquet test• Perth's test • Fagan's test
PALPATION (Contd..)
• Arterial pulsations of both legs• Nerves ( Dermatomal distribution ) of both
legs• Ankle jerks of both legs• Palpate the regional lymph nodes
PERCUSSION
• Schwarts test :- In long standing case if a tap is made on
the long saphenous varicose vein on the lower part of leg ,an impulse can be felt at the saphenous opening with the other hand
AUSCULTATION
• For AV fistulae where a continuous machinery murmur may be heard.
• Always examine both limbs.
GENERAL EXAMINATION
• Examination of abdomen is most important. • Sometime a pregnant uterus or intrapelvic
tumor, fibroid, ovarian cyst, cancer of cervix or rectum or abdominal lymph adenopathy may cause pressure on the external iliac vein and become responsible for secondary varicosities.
• Scrotal examination must be carried out to rule out varicocele.
INVESTIGATION
Gold standard investigation is DUPLEX ULTRASOUND IMAGING
INVESTIGATIONS ( CONTD…)
If duplex ultrasound scan1) is not available OR2) Is non diagnostic Then go for Doppler ultrasonography.
INVESTIGATION (Contd..)
3) VARICOGRAPHY :- It involves injection of contrast directly into
superficial varices which allows detailed mapping of the varices to their termination. This is helpful in patients with recurrent varicose veins or with complex anatomy
VARICOGRAPHY
INVESTIGATION (Contd..)
4 ) Venography :- Descending IV venography where contrast is
injected via the deep veins or magnetic resonance venography is useful when lower limb varicosities appear to arise from pelvic vein incompetence.
VENOGRAPHY
Management
• Reassurance for asymptomatic patients • Indication for referral to vascular surgeon
includes :-C2 disease associate with bleeding
superficial thrombophlebitis symptoms which are impairing quality of life C3 to C6 disease.
Conservative:
1)Change life style(diet) 2)change standing occupation if
possible 3)Decrease long standing hours. 4)Compression hosieries.5) Avoid smoking
COMPRESSION STOCKINGS
SURGICAL OPTIONS AVAILABLE
1 )MINIMAL INVASIVE SURGERY• Ultrasound guided foam sclerotherapy• Endovenous laser ablation• Radiofrequency ablation
ULTRASOUND GUIDED FOAM SCLEROTHERAPY
ULTRASOUNDED GUIDED FOAM SCLEROTHERAPY
Ultrasound guided foam sclerotherapynvolves the injection of detergent directly into superficial veins , most commonly used is SODIUM TETRA DECYL SULPHATE.
It destroy the lipid membrane of endothelial cells causing them to shed leading to thrombosis , fibrosis, and obliteration.
COMPLICATIONS OF UGFS
• Phlebitis• Pigmentation• Headache• Visual disturbance• Cough
ENDOVENOUS LASER ABLATION
RADIOFREQUENCY ABLATION
CONVENTIONAL SURGICAL PROCEDURES
• Saphenofemoral flush ligation and long saphenous stripping
• Saphenopopliteal junction ligation and lesser saphenous stripping
• Perforator ligation• phlebectomies
SAPHENOFEMORAL FLUSH LIGATION AND LONG SAPHENOUS STIPPING
SAPHENOPOPLETEAL JUNCTION LIGATION AND LESSER SAPHENOUS STIPPING
PERFORATOR LIGATION
PHLABECTOMIES
Complication of standard vericose surgery
• Recurrence• Wound infections• Nerve injury• Venous thromboembolic complications
RECUURENT VARICOSE VEINS
• Approximately 10-20% of patients who present to hospital with varicose veins have had previous interventions.
• Significant clinical recurrence 5-10 years following varicose veins surgery occurs in 10-35 % of patients but duplex detected recurrence is much more common being in the order of 70%
Recurrent varicose veins
Conventional surgery> minimal invasive surgeryShort sap v surgery > long saphenous vein surgeryIncreased BMIWHAT ARE THE CAUSES OF RECURRUNCENeorevascularizationReflux in residual axial veinNew reflux Inadequate initial surgeryThus endovenous intervention would seem to offer an
interactive alternative where feasible.