Validation and Comparison of Scores for Prediction of RIsk for Post-operative Major Morbidity After Cholecystectomy in Acute Calculous Cholecystitis (SPRIMACC)

Inclusion Criteria

• •have a diagnosis of Acute Calculous Cholecystitis (ACC) as defined by Tokyo Guidelines 2018 criteria
• •be candidate to Early Cholecystectomy (EC) during the index admission\*
• •be ≥ 18 years old
• •be stratified for the risk of Common Bile Duct Stones (CBDS) according to the Israelian Score, and, in case of confirmation of CBDS receive pre-operative Endoscopic Retrograde Cholangiopancreatography (ERCP).
• •provide signed and dated informed consent form
• •willing to comply with all study procedures and be available for the duration of the study.
• •* All the patients treated with initial open cholecystectomy, those who undergo Early Laparoscopic Cholecystectomy (ELC), those with conversion from laparoscopic to open cholecystectomy or those who undergo bail out procedures (e.g. subtotal cholecystectomy) will be included.