At the Kepler University Hospital Linz all variants of ERCP (preoperative, intraoperative, postoperative ERCP) are performed in cases of simultaneous cholecysto- and choledocholithiasis. Hardly any other hospital in Austria prefers intraoperative ERCP or offers it at all. A standardized procedure with implemented logistics has been established. This study compares intraoperative and postoperative ERCP.

At the Kepler University Hospital Linz all variants of ERCP (preoperative, intraoperative, postoperative ERCP) in cases of simultaneous cholecysto- and choledocholithiasis are performed. Usually an intraoperative ERCP followed by a preoperative ERCP is preferred. At the Kepler University hospital a high level of expertise in endoscopy and an interdisciplinary endoscopy team (surgical and internal medicine department) makes this high level of effort possible. Hardly any other hospital in Austria prefers intraoperative ERCP or offers it at all. A standardized procedure with implemented logistics has been established.

The aim of this study is to demonstrate and compare the advantages of both procedures at KUK from 1.1.2020 to 30.6.2023 (intraoperative and postoperative ERCP) in terms of morbidity, endoscopic success and the better way for patients and surgeons in clinics.

Inclusion Criteria:

• simultaneous cholecysto-, choledocholithiasis
• emergency or elective
• confirmed choledocholithiasis
• intraoperative ERCP
• preoperative ERCP followed by cholecystectomy
• postoperative ERCP

Exclusion Criteria:

- < 18 years

All patients undergoing surgery and ERCP in context to cholecysto-, choledocholithiasis in out hospital