Sunday, March 4, 2012

Well's Criteria for Deep Vein Thrombosis

Well's Criteria for DVT
UseEstimates likelihood of deep vein thrombosis
ScoringActive cancer (ongoing treatment or within previous 6 months or palliative) (+1)

Paralysis, paresis or recent plaster immobilization of the lower extremities (+1)

Recently bedridden for > 3 days, or major surgery within 12 weeks (+1)

Localised tenderness along the distribution of the deep venous system (+1)

Entire leg swollen (+1)

Calf swelling by > 3 cm (measured 10 cm below tibial tuberosity) (+1)

Pitting oedema confined to symptomatic leg (+1)

Collateral superficial veins (non-varicose) (+1)

Previous documented DVT (+1)

Alternative diagnosis at least as likely (-2)
Assessment  Score of 2 or higher — deep vein thrombosis is likely. Consider imaging the leg veins.
Score of less than 2 — deep vein thrombosis is unlikely. Consider blood test such as d-dimer test to further rule out deep vein thrombosis

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