ToolsCalculators
CholeS Score for Laparoscopic Cholecystectomy Duration
Predicts risk of prolonged (> 90 min) elective laparoscopic cholecystectomy.
CholeS Score for Laparoscopic Cholecystectomy Duration
Age
Sex
Indication for surgery
BMI
Common bile duct on imaging
Gallbladder wall
Pre-operative CT performed
Planned intra-operative cholangiogram
Previous surgical admissions
ASA grade
Result0.0 points
Low (~5 % exceed 90 min).
- Predicted duration group
- Low (~5 % exceed 90 min)
When to use
- Predicting a prolonged operation to aid theatre scheduling and case-list planning.
Formula
Sum weighted points for age, sex, indication, BMI, CBD diameter, gallbladder wall, pre-op CT, planned cholangiogram, prior admissions and ASA. Range 0–20; ≤ 3.5 low, 4–8 intermediate, > 8 high probability of > 90-minute surgery.
Pearls and pitfalls
- Designed for elective cases to inform scheduling, not to judge operative difficulty per se.