Table 1.
1 Point |
Age 41–60 years |
Minor surgery |
BMI>25kg/m2 |
Swollen Legs |
Varicose veins |
Pregnancy or postpartum state |
History of unexplained or recurrent abortions (>3) |
Oral contraceptive use or hormone replacement |
Sepsis (<1 month) |
Serious lung disease, including pneumonia (<1 month) |
Abnormal pulmonary function |
Acute myocardial infarction |
Congestive heart failure |
History of inflammatory bowel disease |
Medical patient at bed rest |
2 Points |
Age 61–74 years |
Major open surgery (>45 min) |
Laparoscopic surgery (>45 min) |
Malignancy |
Confined to bed (>72 hours) |
Immobilizing cast |
Central venous Access |
3 Points |
Age >74 years |
History of VTE |
Family history of VTE |
Congenital or acquired thrombophilias (ie Factor V Leiden, anticardiolipin antibodies, elevated serum homocystine, Prothrombin 20210A) |
Heparin-induced thrombocytopenia |
5 Points |
Stroke <1 month |
Elective arthoplasty |
Hip, pelvis or leg fracture |
Acute spinal cord injury (<1 month) |
Above model adapted from the Caprini risk assessment model published in the American College of Chest Physicians Guidelines.[10]