caprini_vte_score: Caprini Score for Venous Thromboembolism (2005)

In cliot: Clinical Indices and Outcomes Tools

Caprini Score for Venous Thromboembolism (2005)

Description

Calculates the 2005 Caprini Risk Score to stratify surgical patients for risk of Venous Thromboembolism (VTE). The score aggregates weighted risk factors to determine the appropriate level of prophylaxis (mechanical vs. pharmacological).

Usage

caprini_vte_score(age, risk_factors_1pt_count, risk_factors_2pt_count,
                  risk_factors_3pt_count, risk_factors_5pt_count)

Arguments

age	Numeric. Patient age in years.
risk_factors_1pt_count	Numeric. Count of 1-point risk factors present (excluding Age). Includes: Minor surgery, BMI > 25, Swollen legs, Varicose veins, Pregnancy/Postpartum, History of unexplained abortion, Oral contraceptives/HRT, Sepsis <1mo, Serious lung disease <1mo, Abnormal pulmonary function, Acute MI, CHF <1mo, Medical patient on bed rest, History of IBD, Prior major surgery <1mo.
risk_factors_2pt_count	Numeric. Count of 2-point risk factors present (excluding Age). Includes: Major open surgery (>45 min), Laparoscopic surgery (>45 min), Arthroscopic surgery, Malignancy (present or past), Confined to bed >72h, Immobilizing cast <1mo, Central venous access.
risk_factors_3pt_count	Numeric. Count of 3-point risk factors present (excluding Age). Includes: History of DVT/PE, Family history of thrombosis, Factor V Leiden, Prothrombin 20210A, Elevated serum homocysteine, Positive lupus anticoagulant, Elevated anticardiolipin antibodies, HIT, Other thrombophilia.
risk_factors_5pt_count	Numeric. Count of 5-point risk factors present. Includes: Elective major lower extremity arthroplasty, Hip/Pelvis/Leg fracture <1mo, Stroke <1mo, Multiple trauma <1mo, Acute spinal cord injury <1mo.

Value

A list containing:

Caprini_Score	The calculated total score.
Risk_Category	Risk classification (Very Low, Low, Moderate, High).
Recommendation	Suggested prophylaxis strategy.

References

Caprini JA. Thrombosis risk assessment as a guide to quality patient care. Dis Mon. 2005;51(2-3):70-78. doi:10.1016/j.disamonth.2005.02.003

Examples

# Example 1: Moderate Risk
# Age 50 (1 pt), BMI > 25 (1 pt), Laparoscopic surgery > 45min (2 pts)
# Score = 1 + 1 + 2 = 4
caprini_vte_score(50, 1, 1, 0, 0)

# Example 2: High Risk
# Age 76 (3 pts), Hip Fracture (5 pts)
# Score = 3 + 5 = 8
caprini_vte_score(76, 0, 0, 0, 1)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.