Caprini Score for Venous Thromboembolism (VTE) Risk Prediction

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Caprini Score for Venous Thromboembolism (VTE) Risk Prediction

A1 Risk Factors Worth 1 Point Each

Age 40-59 years

Planned minor surgery

Recent major surgery

Obesity (BMI > 30)

Bedridden medical patients

History of inflammatory bowel disease

Leg edema

Varicose veins

Severe pulmonary disease, including pneumonia (within 1 month)

Pulmonary dysfunction (COPD)

Acute myocardial infarction (within 1 month)

Congestive heart failure (within 1 month)

Sepsis (within 1 month)

Blood transfusion (within 1 month)

Leg cast or limb immobilization

Central venous catheterization

Other high-risk factors

A2 For Women Only (1 Point Each)

Oral contraceptives or hormone replacement therapy

Pregnant or postpartum (within 1 month)

Unexplained stillbirth, recurrent miscarriage (≥3 times), or premature birth due to toxemia or restricted growth

B Risk Factors Worth 2 Points Each

Age 60-74 years

Major surgery (<60 min)^*

Laparoscopic surgery (<60 min)^*

Arthroscopic surgery (<60 min)^*

History of malignancy

Obesity (BMI > 40)

C Risk Factors Worth 3 Points Each

Age ≥ 75 years

Major surgery lasting 2-3 hours ^*

Obesity (BMI > 50)

History of superficial or deep vein thrombosis or pulmonary embolism

Family history of thrombosis

Current malignancy or chemotherapy

Heparin-induced thrombocytopenia

Unlisted congenital or acquired thrombophilia

Anticardiolipin antibodies positive

Prothrombin 20210A positive

Factor V Leiden positive

Lupus anticoagulant positive

Elevated serum homocysteine

D Risk Factors Worth 5 Points Each

Stroke (within 1 month)

Acute spinal cord injury (paralysis) (within 1 month)

Elective lower limb joint replacement surgery

Hip, pelvic, or lower limb fractures

Multiple trauma (within 1 month)

Major surgery (more than 3 hours) ^*

Risk Score:

Result Interpretation

Note: * Only one surgical factor can be selected

Score	DVT Risk	Risk Level	Preventive Measures
0-1 points	<10%	Low risk	Early mobilization, physical prevention
2 points	10%-20%	Moderate risk	Medical or physical prevention
3-4 points	20%-40%	High risk	Medical or physical prevention
≥ 5 points	40%-80%	Very high risk	Medical or physical prevention

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