|
Risk factor |
Score | |
|
Age | ||
|
41-60 years |
1 | |
|
61-74 years |
2 | |
|
≥75 years |
3 | |
|
BMI >25 kg/m2 |
1 | |
|
Women | ||
|
Oral contraceptives or HRT |
1 | |
|
Pregnancy or postpartum |
1 | |
|
History of unexplained or recurrent miscarriage/stillborn infant |
1 | |
|
Thrombophilia | ||
|
Elevated serum homocysteine |
3 | |
|
Positive factor V Leiden mutation |
3 | |
|
Positive prothrombin 20210A mutation |
3 | |
|
Positive lupus anticoagulant |
3 | |
|
Positive anticardiolipin antibodies |
3 | |
|
Positive anti–beta2-GPI antibodies |
3 | |
|
HIT |
3 | |
|
Other congenital or acquired thrombophilia |
3 | |
|
Venous disease | ||
|
Lower limb edema |
1 | |
|
Varicose veins of lower limb |
1 | |
|
History of VTE |
3 | |
|
Family history of VTE |
3 | |
|
Immobilization |
| |
|
Medical patient currently at bed rest |
1 | |
|
Patient confined to bed (>72 h) |
2 | |
|
Limb immobilized in plaster cast |
2 | |
|
Surgery | ||
|
Minor surgery planned |
1 | |
|
Arthroscopic surgery |
2 | |
|
Major surgery (>45 min) |
2 | |
|
Laparoscopic surgery (>45 min) |
2 | |
|
Elective arthroplasty |
5 | |
|
Hip, pelvis, or leg fracture |
5 | |
|
Other | ||
|
Sepsis (<1 month) |
1 | |
|
Serious lung disease, including pneumonia (<1 month) |
1 | |
|
Abnormal pulmonary function |
1 | |
|
Acute myocardial infarction |
1 | |
|
Onset or exacerbation of heart failure (<1 month) |
1 | |
|
History of inflammatory bowel disease |
1 | |
|
Central venous access |
2 | |
|
Malignancy |
2 | |
|
Stroke (<1 month) |
5 | |
|
Acute spinal cord injury (<1 month) |
5 | |
|
Interpretation of risk level: Score 0: Very low risk Score 1-2: Low risk Score 3-4: Moderate risk Score ≥5: High risk | ||
|
Adapted from Chest. 2012;141(2 Suppl):e227S-e277S. | ||
|
Anti–beta2-GPI, anti–beta2-glycoprotein I; BMI, body mass index; HIT, heparin-induced thrombocytopenia; HRT, hormone replacement therapy; VTE, venous thromboembolism. | ||