Venous and Lymphatic Disease - Presentation, Investigation and Therapy Flashcards
Have a clear understanding of the role and function of the venous system in the lower legs
- Valves
- Calf muscle pump
- Veins drain into deep system: within muscle compartments can withstand higher pressure
Recognise the changes of chronic venous insufficiency
- Failure of calf muscle pump
- Superficial and deep venous reflex
- Venous obstruction
Have a basic understanding of what investigation are required to confirm the diagnosis
- Tap test: tap SFJ and feel LSV over knee, transmission indicates valvular incompetence
- Tourniquet test: apply pressure to SFJ, on standing the varicose vein will not be visible
- Doppler: squeeze calf at SFJ, whoosh indicates incompetence
- USS
Have a basic understanding of different treatment options
- Endovenous treatment
- Ultrasound-guided foam sclerotherapy
- Open surgery
Intervention shouldn’t be offered if deep system is obstructed.
Have a basic understanding of problems that may arise when the lymphatic system in the lower limbs is diseased
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Define varicose vein
- Dilated and tortuous superficial vein
- Most commonly found in the lower limbs
Describe the causes of venous valvular failure
- Surgical or traumatic disruption
- DVT
- Hormonal changes e.g. pregnancy
- Large pelvic tumour
Describe the pathophysiology of venous valvular failure
- Valve fails
- Venus pressure increases
- Vein dilates
- More valves fail
Describe the risk factors of venous disease
- Age
- Female
- Pregnancies
- DVT
- Standing for a long time
- Family history
Describe the diagnosis of venous disease
- Burning
- Itching
- Heaviness
- Tightness
- Swelling
- Discolouration
- Phlebitis (inflammation of vein)
- Bleeding
- Disfiguration
- Eczema
- Ulceration
Under the NICE guidelines, when should management be offered for venous disease?
- Bleeding varicose veins
- Symptomatic
- Recurrent
- Skin changes due to chronic venous insufficiency
- Superficial thrombosis
- Leg ulcer
Describe the pathophysiology of venous insufficiency
- Venous insufficiency
- Venous hypertension
- Endothelial leak
- Oedema
- Increased perfusion distance
- Impaired healing
- Inflammation
- Fibrinogen, tissue damage
- Impaired tissue perfusion
Describe venous ulcers
Break in skin between knee and ankle joints, present for >4 weeks.
- Gaiter area
- Granulomatous red base
- Shallow
- Irregular margins
- Exudative, oedematous
- Painless, pulses present
Describe the investigations of venous leg ulcers
- History
- Examination
- Ankle-brachial pressure index
Describe the treatment of venous leg ulcers
- Exclude arterial disease (ABPI)
- Wound care
- Elevation
- Compression bandages
- Shockwave therapy