Clinical condition | Score |
---|---|
Sources: 1 Wells PS, Anderson DR, Bormanis J, et al. Value of assessment of pretest probability of deep-vein thrombosis in clinical management. Lancet 1997;350(9094):1795-8. [PubMed] 2 Wells PS, Anderson DR, Rodger M, et al. Evaluation of D-dimer in the diagnosis of suspected deep-vein thrombosis. N Engl J Med 2003;349(13):1227-35. [PubMed] | |
Active cancer (treatment ongoing, within last 6 months or palliative) | 1 |
Paralysis, paresis or recent plaster immobilisation of a lower limb | 1 |
Recently bedridden for longer than 3 days or major surgery within last month | 1 |
Localised tenderness along the distribution of the deep venous system | 1 |
Swelling of entire lower limb | 1 |
Calf swelling > 3 cm compared with the asymptomatic leg (measured 10 cm below the tibial tuberosity) | 1 |
Pitting oedema (greater in the symptomatic leg) | 1 |
Collateral superficial veins | 1 |
Previously diagnosed deep vein thrombosis | 1 |
Alternative diagnosis more likely than that of deep vein thrombosis | - 2 |
|
Indications | Duration |
---|---|
The safety and suitability of antithrombotic treatment are evaluated by regular monitoring. Continuation of the treatment is evaluated on case-by-case basis after e.g. a significant bleeding complication. | |
First episode of thrombosis with a transient risk factor present (e.g. surgery, trauma, immobility, hormonal contraception or replacement therapy, pregnancy) | 3 months |
First episode of unprovoked thrombosis | At least 3-6 months |
First episode of thrombosis in a patient with
| Permanent |
Recurrent unprovoked thrombosis First life-threatening thrombosis without a predisposing factor First thrombosis without a predisposing factor at an atypical location (e.g. veins of the abdominal area or venous sinus thrombosis) | Permanent |