cliot (version 1.0.0)

trip_cast_score: TRIP-Cast Score for Thrombosis Risk Prediction

Description

Calculates the TRIP-Cast score to estimate the risk of venous thromboembolism (VTE) in patients with lower limb immobilization (cast or brace). The score stratifies patients into low, moderate, or high risk groups.

Usage

trip_cast_score(age, sex, bmi, oral_contraceptive, vte_history, cancer_history,
                cast_below_knee, mobility, surgery)

Value

A list containing:

TRIP_Cast_Score

The calculated risk score (Range 0-24).

Risk_Category

Classification (Low < 7, Moderate 7-11, High >= 12).

Estimated_VTE_Risk

Estimated 3-month cumulative VTE incidence.

Arguments

age

Numeric. Patient age in years. <35: 0 pts. 35-55: 2 pts. >55: 3 pts.

sex

String. Patient sex. "Male": +1 pt. "Female": 0 pts.

bmi

Numeric. Body Mass Index. <25: 0 pts. 25-30: 1 pt. >30: 2 pts.

oral_contraceptive

Numeric (0 or 1). Use of oral contraceptives/hormones. (1 = Yes, +4 pts).

vte_history

Numeric (0 or 1). Personal or family history of VTE (or superficial vein thrombosis). (1 = Yes, +5 pts).

cancer_history

Numeric (0 or 1). History of cancer. (1 = Yes, +3 pts).

cast_below_knee

Numeric (0 or 1). Is the cast/brace strictly below the knee? 1 (Yes): 0 pts. 0 (No/Above knee involvement): +1 pt.

mobility

Numeric (0 or 1). Severely restricted mobility (e.g., non-weight bearing). (1 = Yes, +2 pts).

surgery

Numeric (0 or 1). Surgery performed or planned. (1 = Yes, +3 pts).

References

Nemeth B, van Adrichem RA, van Hylckama Vlieg A, et al. Venous thrombosis risk after cast immobilization of the lower extremity: the TRIP-cast score. Thromb Haemost. 2015;114(6):1242-1249. doi:10.1160/TH15-03-0197

Examples

# Example 1: Low Risk
# 25yo Male, BMI 22, No Hx, Below Knee cast, Partial weight bearing, No Surgery
# Score = 0 (Age) + 1 (Male) + 0 (BMI) + 0 + 0 + 0 + 0 (BK) + 0 (Mobility) + 0 (Surg) = 1
trip_cast_score(25, "male", 22, 0, 0, 0, 1, 0, 0)

# Example 2: High Risk
# 40yo Female, BMI 32, OCP, Hx VTE, Below Knee, Non-weight bearing, No Surg
# Score = 2 (Age) + 0 (Fem) + 2 (BMI) + 4 (OCP) + 5 (Hx) + 0 + 0 + 2 (Mobility) + 0 = 15
trip_cast_score(40, "female", 32, 1, 1, 0, 1, 1, 0)