cliot (version 1.0.0)

choles_score_duration: CholeS Score for Laparoscopic Cholecystectomy Duration

Description

Calculates the CholeS Score to predict the duration and difficulty of elective laparoscopic cholecystectomy. This score, derived from the CholeS Study, helps in operating list planning and identifying cases that may require senior surgical expertise due to predicted complexity.

Usage

choles_score_duration(sex, age, history_acute_cholecystitis, bmi, asa_class_ge_3)

Value

A list containing:

CholeS_Score

The calculated score (Range 0-7).

Risk_Category

Risk stratification (Low, Medium, High).

Est_Duration

Estimated mean duration of surgery.

Arguments

sex

String. Patient sex ("Male" or "Female"). (Male adds +1 point).

age

Numeric. Patient age in years. < 60: 0 pts. 60-70: 1 pt. > 70: 2 pts.

history_acute_cholecystitis

Numeric (0 or 1). History of acute cholecystitis. (1 = Yes, +1 point).

bmi

Numeric. Body Mass Index (kg/m^2). < 30: 0 pts. 30-35: 1 pt. > 35: 2 pts.

asa_class_ge_3

Numeric (0 or 1). ASA Physical Status III, IV, or V. (1 = Yes, +1 point).

References

CholeS Study Group, West Midlands Research Collaborative. Population-based cohort study of variation in the use of emergency cholecystectomy for benign gallbladder diseases. Br J Surg. 2016;103(12):1716-1726.

Examples

# Example 1: High Difficulty
# Male (+1), 75yo (+2), Hx Acute Chole (+1), BMI 36 (+2), ASA III (+1)
# Score = 7
choles_score_duration("male", 75, 1, 36, 1)

# Example 2: Low Difficulty
# Female (0), 45yo (0), No Hx (0), BMI 28 (0), ASA I (0)
# Score = 0
choles_score_duration("female", 45, 0, 28, 0)