Caprini risk assessment

A risk assessment tool for the occurrence of venous thromboembolism among surgical patients.

The risk score includes 20 variables and it is derived from a prospective study of general surgery patients.

Caprini Risk Assessment Model

Different scores for the factors included in the Caprini score.

5 points 3 points 2 points 1 point

❑ Stroke, in the previous month

❑ Fracture of the hip, pelvis, or leg

❑ Elective arthroplasty

❑ Acute spinal cord injury, in the previous month

❑ and Age≥ 75 years

❑ Prior episodes of VTE

❑ Positive family history for VTE

❑ Prothrombin 20210 A

❑ Factor V Leiden

❑ Lupus anticoagulants

❑ Anticardiolipin antibodies

❑ High homocysteine in the blood

❑ Heparin induced thrombocytopenia

❑ Other congenital or acquired thrombophilia

❑ Age: 61-74 years

❑ Arthroscopic surgery

❑ Laparoscopy lasting more than 45 minutes

❑ General surgery lasting more than 45 minutes

❑ Cancer

❑ Plaster cast

❑ Bed bound for more than 72 hours

❑ Central venous access

❑ Age 41-60 years

❑ BMI > 25 Kg/m2

❑ Minor surgery

❑ Edema in the lower extremities

❑ Varicose veins

❑ Pregnancy

❑ Post-partum

❑ Oral contraceptive

❑ Hormonal therapy

❑ Unexplained or recurrent abortion

❑ Sepsis in the previous month

❑ Serious lung disease such as pneumonia in the previous month

❑ Abnormal pulmonary function test

❑ Acute myocardial infarction

❑ Congestive heart failure in the previous month.

❑ Bed rest

❑ Inflammatory bowel disease

Interpretation of the Caprini Risk Score

The Caprini score is calculated by adding the scores.

Score 0-1: Low risk of VTE

Score 2: Moderate of VTE

Score 3-4: High risk of VTE

Score ≥ 5: Highest risk for VTE

Not helpful in evaluating hospitalized medical patients (Grant PJ et al).

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