The CholeS score is a predictive tool designed to estimate the likelihood of prolonged operative time, specifically for laparoscopic cholecystectomy procedures. This calculator determines the score based on ten distinct patient factors, facilitating the assessment of potential surgical complexity.

Each factor influences the score as follows:

- **Age, years**: 
  - "< 40" = 0
  - ">= 40" = 1.5

- **Gender**:
  - Male = 1
  - Female = 0

- **Indication**:
  - Pancreatitis = 0
  - Colic, dyskinesia, or polyp = 0.5
  - Common bile duct stone = 2
  - Acalculous/cholecystitis = 2.5

- **Body mass index**:
  - "< 25" = 0
  - "25-35" = 1
  - "> 35" = 2

- **Common bile duct diameter**:
  - Normal = 0
  - Dilated = 2

- **Gallbladder wall**:
  - Normal = 0
  - Thick = 1.5

- **Preoperative computed tomography done**:
  - Yes = 1.5
  - No = 0

- **Planned intraoperative cholangiogram**:
  - Yes = 3
  - No = 0

- **Number of previous surgical admissions**:
  - 0 = 0
  - "1-2" = 1
  - "> 2" = 2.5

- **American Society of Anesthesiologists class**:
  - 1 = 0
  - 2 = 1
  - "> 2" = 2.5

These individual scores are summed up to calculate an overall CholeS score, which can range from 0 to 20. The interpretation of the score helps to predict the risk of an operative time extending beyond 90 minutes:

- A score of 3 or less indicates a 5.1% risk.
- Scores between 4 and 8 signify a risk of 5.1% to 41.8%.
- If the score exceeds 8, the risk increases to over 41.8%.

This scoring system is invaluable for surgical teams as they prepare for the procedure, offering a data-driven basis to anticipate case complexity and manage resources effectively.

The CholeS score, or Cholecystectomy Scoring System, is a clinical calculator used to predict the duration of laparoscopic cholecystectomy, a surgical procedure to remove the gallbladder. This scoring system is applicable to patients who are undergoing laparoscopic cholecystectomy, particularly those with gallstone disease.

The CholeS score is clinically useful in preoperative planning and resource allocation. It helps surgeons estimate the duration of the procedure, which can aid in scheduling and managing operating room resources. It can also assist in patient counseling regarding the expected length of the procedure.

The CholeS score is not applicable to patients undergoing open cholecystectomy or those with other types of gallbladder disease. It also may not be accurate in predicting the duration of surgery in complex cases or in patients with significant comorbidities.

CholeS score for duration of laparoscopic cholecystectomy