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Surgery

CholeS Score calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

years

Allowed range: 0–120 years

Quick picks

Younger than 40 scores 0. 40 years or older scores 1.5.

Sex
Indication
kg/m²

Allowed range: 10–80 kg/m²

Quick picks

Below 25 scores 0. 25 through 35 inclusive scores 1. Above 35 scores 2.

Common bile duct

Normal scores 0 and dilated scores 2. No millimetre cutoff is printed.

Gallbladder wall

Normal scores 0 and thick scores 1.5. No millimetre cutoff is printed.

admissions

Allowed range: 0–30 admissions

Quick picks

None scores 0. One or two score 1. More than two scores 2.5.

class

Allowed range: 1–5 class

Quick picks

ASA 1 scores 0. ASA 2 scores 1. ASA greater than 2 scores 2.5.

Result

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Clinical inputs

  • Age in yearsAccepted range: 0 to 120
  • Sex
  • Indication
  • Body mass index (kg/m²)Accepted range: 10 to 80
  • Common bile duct
  • Gallbladder wall
  • Pre-operative CT
  • Planned intra-operative cholangiogram
  • Previous surgical admissionsAccepted range: 0 to 30
  • ASA classAccepted range: 1 to 5

Primary source

Bharamgoudar R et al. Surg Endosc. DOI: 10.1007/s00464-018-6030-6. PMID: 29340820. Age 40 years or older 1.5. Male sex 1. Indication: pancreatitis 0, colic or dyskinesia or polyp 0.5, common-bile-duct stone 2, acalculous disease or cholecystitis 2.5. BMI below 25 is 0, 25 through 35 is 1, and above 35 is 2. A dilated duct is 2 and a thick wall is 1.5. Pre-operative CT is 1.5. A planned cholangiogram is 3. One or two previous surgical admissions score 1, and more than two score 2.5. ASA 2 scores 1 and ASA greater than 2 scores 2.5. In validation, 24 of 470 operations scoring 0 through 3 lasted more than 90 minutes (5.1%), and 109 of 261 scoring above 8 did so (41.8%). (2018)

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