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Table 2 Caprini Risk Assessment Model

From: Venous thromboembolism in head and neck cancer surgery

Each Risk Factor Represents 1 Point

Each Risk Factor Represents 2 Points

• Age 41–60 years

• Swollen legs

• Varicose veins

• Obesity (BMI > 25)

• Minor surgery planned

• Sepsis (<1 month)

• Serious lung disease including pneumonia (<1 month)

• Acute myocardial infarction

• Congestive heart failure (<1 month)

• Medical patient currently at bed rest

• History of inflammatory bowel disease

• History of major surgery (<1 month)

• Abnormal pulmonary function (COPD)

• Pregnancy or postpartum (<1 month)

• Oral contraceptive or hormone replacement therapy

• History of unexplained stillborn infant or recurrent spontaneous abortion (>3), premature birth with toxemia or growth restricted infant

• Age 61–74 years

• Arthroscopic surgery

• Malignancy (present or previous)

• Laparoscopic surgery (>45 min)

• Patient confined to bed (>72 h)

• Immobilizing plaster cast (<1 month)

• Central venous access

• Major surgery (>45 min)

Each Risk Factor Represents 3 Points

• Age 75 years or older

• History of DVT/PE

• Positive Factor V Leiden

• Elevated serum homocysteine

• Heparin-induced thrombocytopenia

• Elevated anticardiolipin antibodies

• Other congenital or acquired thrombophilia

• Family history of thrombosis

• Positive prothrombin 20210A

• Positive Lupus anticoagulant

Each Risk Factor Represents 5 Points

• Stroke (<1 month)

• Multiple trauma (<1 month)

• Elective major lower extremity arthroplasty

• Hip, pelvis or leg fracture (<1 month)

• Acute spinal cord injury (<1 month)

Total:

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