CholeS Score for Duration of Laparoscopic Cholecystectomy

The CholeS Score predicts the likelihood of a prolonged (>90‑minute) laparoscopic cholecystectomy based on preoperative patient and gallbladder factors.

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Age, years
Gender
Indication
BMI
Common bile duct diameter
Gallbladder wall
Pre-operative CT done
Intra-op cholangiogram planned
Number of previous surgical admissions
ASA class

Indicações de Uso

Used for adults undergoing elective laparoscopic cholecystectomy to estimate risk of prolonged operative time (>90 min) using preoperative factors (age, ASA class, BMI, prior surgical admissions, gallbladder wall thickness, CBD diameter). Helps optimize theatre scheduling, allocate appropriate surgical expertise, and improve consent and resource planning, with external validation showing moderate discrimination (AUC 0.708) 1.

Insights e Precauções

Predicts likelihood of operative time >90 min, but is only moderately accurate and externally validated with AUC 0.786 (200‑patient Mexican cohort) 1 [Level II evidence].

  • Best used for theatre planning, not clinical decision‑making.
  • Moderate discrimination only; performance varies by population.
  • Does not incorporate acute cholecystitis severity, an important driver of prolonged time.
  • Should not guide surgeon assignment or consent alone—supports workflow, not risk prediction.