Fig. 1

The filtering process: From November 2017 to June 2022 patients with mild acute biliary pancreatitis (MABP) (n=221). Exclusion (n=137) : not the same-admission laparoscopic cholecystectomy(n=43); history of upper abdominal surgery or radiotherapy (n=19) ; repeated or chronic abdominal pain (n=43) ; common bile duct stone were found on admission (n=25) ; postoperative gallbladder pathological diagnosis of a chronic proliferative lesion or tumor (n=4) ; autoimmune diseases (n=3) . The mirabilite group and the control group both had 42 cases patients, respectively. The mirabilite group: exclusion (n=4) : unplanned discharge (n=2) ; use of mirabilite for less than 3 days (n=1) ; incomplete information (n=1) . The control group: exclusion (n=5) :unplanned discharge (n=4) ; common bile duct stones found before surgery (n=1)