venous disorders - srm university disorders 1.pdf · anatomy of venous system • superficial venis...
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VENOUS DISORDERS
VARICOSE VEINS
DVT
ANATOMY OF VENOUS SYSTEM
• SUPERFICIAL VENIS AND DEEP VEINS • LONG AND SHORT SAPHENOUS VEINS (LSV & SSV)
CARRY ONLY 10 % OF VENOUS RETURN• VENOUS DISORDER COMMON IN LOWER LIMBS• LSV – FROM DORSAL VENOUS ARCH MEDIALLY
ASCENDS – MEDIAL SIDE OF LEG- SUB CUTANEOUS PLANE – JOINS IN FEMORAL TRIANGLE WITH FEMORAL V.SAPHENO FEMORAL JUNCTION ( SFJ)
• SSV : FROM LATERAL DORSAL VENOUS ARCH ASCENDS LATERAL SIDE OF LEG JOINS POPLITEAL VEIN AT POPLITEAL FOSSA
• PERFORATORS V1. MID THIGH DODD’S2. GASTROCNEMIUS BOYD’S 3. LOWER LEG COCKETT’S I, II, III4. ANKLE MAY AND KUSTER
PATHO PHYSIOLOGYSUPERFICIAL VENOUS SYSTEM – LOW PRESSURE 20 mm HgDEEP V. HIGH PRESSURE – SUPPORTED BY MUSCLESVENOUS PUMPS: CALF MUSCLE, THIGH MUSCLES FOOT PUMP – WALKINGVALVES : BICUSPED VALVES – DIRECTS BLOOD TOWARDS HEARTFROM SUPERFICIAL TO DEEP VEINS
VARICOSE VEINS – CAUSE
• FAILURE OF VALVES IN LSV & SSV• 10 – 20 % OF ADULTS• DIET, INHERITANCE – WOMEN• VALVES - COMMISSURE -GAP – DEGENERATION• VEIN BELOW VALVE DILATES• PROLONGED STANDING • PREGNANCY - HORMONAL - SMOOTH MUSCLE
RELAXATION
Clinical features
• COSMETIC • DISCOMFORT AND ACHING • BLEEDING• PHLEBITLS• EZEMA, LIPO DERMATIC SCLEROSIS• ULCERATION
DEFINITIONDILATED TORTUOUS VEINS IN LEG LSV, SSVWITH DEFECTIVE VALVES5 -15 mm DIAMETER 0.5 mm VEINS IN SKIN - FLARE1 - 3 mm VEINS IN SUB-DERMAL RETICULAR
• SYMPTOMS - NOT RELATED TO SEVERITY OF VARICES
COMPLICATION OF VARICOSE VEINS• THROMBOSIS - THROMBOPHLEBITIS• HAEMORRHAGE• ULCERATION • ECZEMA AND PIGMENTATION
DEEP VEIN INCOMPETENCEFOLLOWING DVT - RECANALISATION -VALVES DESTROYEDVENOUS RETURN – SUPERFICIAL VEINSCALF MUSCLE INCREASE IN SIZE – “CHAMPAGNE BOTTLE LEG”ANKLE OEDEMA
ULCERATION, ECZEMA, PIGMENTATION HAEMOSIDERINLIPODERMATOSCLEROSIS
AMBULATORY VENOUS HYPERTENSION• REVERSAL FLOW DEEP TO SUPERFICIAL • VAVULAR INCOMPETENCE• DVT – SEVERE SYMPTOMS
CAUSE OF VENOUS ULCERATION• FIBRIN CUFF HYPOTHESIS
FIBRIN, COLLAGEN IV, FIBRONECTIN PREVENT DIFFUSION OF NUTRIENTS TO CELLS
• WHITE CELL TRAPPING HYPOTHESISLEUCOCYTE SEQUESTRATION - PROTEOLYTIC - ENZYMES
• INJURY TO CAPPILARY ENDOTHELIUM
INVESTIGATIONSa) CLINICAL TESTS1. TOURNIQUET TEST (BRODE – 1846)
THREE LEVELS : SAPHENO FEMORALABOVE KNEE
2. TRENDELENBURG TEST - BELOW KNEE3. PERTHE’S TEST
DOPPLER ULTRASOUND• BI DIRECTIONAL PROBE – REFLUX-• SFJ – INCOMPETENCE• SPJ – LESS RELIABLE• PRIMARY VARICOSE VEINS – EASY
PHOTOPLETHYSMOGRAPHY• PROBE TO ASSESS THE VENOUS FILLING OF SUPERFICIAL
VEINS• PATIENT LIES – DORSIFLEX ANKLE JOINT 10 TIMES
SUPERFICIAL VEIN EMPTY – PPG READING FALLS• PATIENT SITS UP : - SLOW FILLING 30 SECONDS
NORMAL- RAPID FILLING - VEIN INCOMPETANT
DUPLEX IMAGINGB - MODE ULTRASOUND WITH DOPPLERANATOMICA AND FLOW PATTERN WITH COLOUR CODINGDVT, PERFORATORS, REFLUX INCOMPETENCE OF VALVES
VENOGRAPHY• ASCENDING VENOGRAME DVT• DESCENDING VENOGRAPHY CANNULA FEMORAL V.
PATIENT STANDING• RECURRENT VARICOSE VEIN
MANAGEMENT PRIMARY OR SECONDARY
A. CONSERVATIVE1. ELASTIC GRADED PRESSURE STOCKING2. ELEVATION OF LIMB
B. SCLEROTHERAPY• NO MAJOR PERFORATING VEINS • NO SFJ INCOMPETENCE
Optimal indications TelangiectasiasReticular varicosities and reticular veinsIsolated varicosities *
Below-knee varicosities *
Recurrent varicosities
Indications for Sclerotherapy
■Anaphylaxis ■Allergic reactions ■ Thrombophlebitis ■ Cutaneous necrosis ■ Pigmentation ■ Neoangiogenesis
• STD → SODIUM TETRADECYL- EMPTY THE VEIN – INJECTION – COMPRESSION –
ENDOTHELIUM DESTROYED- HIGH RECURRENCE
• STD WITH FOAM• ECHO SCLEROTHERAPY• MULTIPLE SITTINGS REQUIRED
- SKIN PIGMENTATION- ULCERATION
• MICRO SCLEROTHERAPY
SURGICAL TREATMENTDVT – TO BE RULLED OUT
A. TRENDELENBERG PROCEDURESFJ: LIGATION ALONE WITH ITS THREE TRIBUTARIES1. SCI 2. SE 3. SP
Options available for surgical treatment of varicose veins are as follows:■Ankle-to-groin saphenous vein stripping (with stab avulsion) ■ Segmental saphenous vein stripping (with stab avulsion) ■ Saphenous vein ligation: high, low, or both ■ Saphenous vein ligation and sclerotherapy ■ Saphenous vein ligation (with stab avulsion) ■ Stab avulsion of varices without saphenous vein stripping (phlebectomy) ■ Endoluminal occlusion of the saphenous vein by radiofrequency (RF) or laser energy
B. WITH STRIPING LSV• TERMINATION SSV AT POPLITEAL FOSSA VARIABLE • IDEALLY ALL PERFORATORS MAPED WITH DUPLEX SCAN • POOT OPERATIVE COMPRESSION BANDAGE 3 DAYS• FOLLOWED BY GRADED STOCIKNGS
MANAGING PERFORATORS• HOOK PHLEBECTOMY• LINTON’S PROCEDURE • ENDOSCOPIC SUB FACIAL LIGATION
NEW TECHNIQUES• LASER • RF
COMPLICATIONS• BRUISING • LONG SAPHENOUS NERVE
SURAL NERVE INJURY• DVT – RARE
VENOUS RECONSTRUCTIVE SURGERYDEEP VEIN
• SPIRAL GRAFT OF SAPHENOUS VEIN• PALMA’S PROCEDURE : LSV FROM OPPOSITE LEG
REVERSED FROM ANASTAMOSED WITH FEMORALREPAIR OF VALVES
• VALVELOPLASTY• AXILLARY VEIN TRANSPLANT
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