The management of cholelithiasis with choledocolithiasis is extensively known, whereas for Acute Calculous Cholecystitis (ACC) with choledocolithiasis or common bile duct stones (CBDS), a common entity, there is a lack of protocols for optimising treatment. The main hypothesis of our study is: a correct stratification of the concomitant CBDS probability at ACC diagnosis would optimize its treatment as early targeted treatment could be performed. One-step management of ACC with CBDS by a specialised hepatobiliary team would represent a benefit to the patient in terms of morbi-mortality, admission time and number of admissions. The aim of our study is to identify high / intermediate probability criteria for CBDS associated when diagnosing CA. This is a retrospective study of patients who were operated on with an emergent cholecystectomy in our center from 01/2012 to 12/2019.

Data will be obtained from the hospital (Consorci Sanitari del Maresme) clinical database.

The Ethics Committee approval has been obtained.

Inclusion Criteria:

• Age ≥18 years

Exclusion Criteria:

• Non urgent cholecystectomy

All consecutive patients who underwent emergent cholecystectomy for acute calculous cholecystitis