DVT?
thrombus in deep veins of calf / hip
DVT RFx?
VTE prophylaxis
DVT Px?
what are the criteria for the DVT Wells Score?
If 1 or less points - DVT unlikely, 2 or more - DVT likely
If DVT likely (2 or more) on Wells?
USS <4hrs
- positive -> DVT Mx
- negative -> D dimer - if positive, stop interim anticoagulants, rpt US 1wk (negative - DVT unlikely)
If US not available <4hrs, D-dimer, start interim DOAC / LMWH, USS <24hrs
IF DVT unlikely (1 or less) on Wells?
D-dimer
- positive -> USS <4hrs, or start anticoagulation and scan <24hrs
- negative - DVT unlikely
DVT Mx?
Provoked VTE
- 3mo tx (3-6mo if active cancer)
Unprovoked VTE
- 6mo tx
- APl ABs, Ix for thrombophilias
Peripheral artery disease (PAD)
Intermittent claudication
- cramping, relieved by rest
Critical limb ischaemia
- claudication at rest, eg nocturnal
Acute limb ischaemia
- sudden decrease in limb ischaemia
Atherosclerosis RFs
PAD Px?
Intermittent claudication
- aching / burning in legs after walking
- relieved by rest
- not at rest
Critical limb ischaemia
- rest pain
- worse at night
- hang foot off bed to relieve pain
- ulcers, gangrene
PAD Ix?
Pulses, Buerger’s
- FBC…
- ABPI - PAD 0.5-0.9, critical <0.5
- Doppler US
- MR / CT angiography
PAD MX?
Medical
- atorvastatin 80mg
- clopidogrel
- Tx comorbidities
- consider naftidrofuryl oxalate
Surgical
- angioplasty +/- stent
- surgical bypass
- endarterectomy
- amputation
acute limb ischaemia - + factors that might suggest thrombus versus embolus?
sudden decrease in arterial perfusion to limb
factors suggesting thrombus
- pre-existing claudication
- reduced pulses in other limb
- vascular disease, eg MI, stroke, TIA
Embolus
- sudden onset pain
- no hx claudication
- embolus source, eg AF, recent MI
- no PAD
- proximal aneurysm, eg abdo / poplitea
Acute limb ischaemia Px
Acute limb ischaemia Ix
Acute limb ischaemia Mx
Vascular mx
- endovascular thrombolysis
- endovascular thrombectomy
- surgical embolectomy / thrombectomy
- angioplasty
- bypass surgery
- amputation
Varicose veins
Varicose veins RFs
Varicose veins Px
varicose vein complications?
Varicose veins Ix
Varicose veins Mx
when would you refer varicose veins to secondary care? what treatment would they give?
Secondary care tx
- endothermal ablation
- foam sclerotherapy
- surgery - ligation / stripping