Introduction : Postcholecystectomy syndrome(PCS) is defined as the recurrent symptoms sililar to the preoperative symptoms even after cholecystectomy. PCS is present in 5 to 40 % of patients who underwent cholecystectomy, but the exact causes have not been fully known. The purpose of this study is to evaluate whether the adhesion of duodenum to gallbladder bed after cholecystectomy is related to symptom developement.

Methods : From January 2019 to December 2019, non-contrast CT scans were performed on 15 patients with PCS and 15 asymptomatic patients who wanted to check postoperative abdominal status after laparoscopic cholecystectomy. A radiologist measured the angle before and after surgery and adhesion of the duodenum under blind condition.

Results : General demographics were comparable between No symptom group and PCS group including age, gender, BMI, operative indications, previous operative history, operative type, bile spillage during the surgery, postoperative complication, and postoperative hospital stay. Symptoms of PCS group included postprandial pain (60%), right upper quadrant pain (66.7%), epigastric pain (53.3%), back pain (33.3%), and dyspepsia (46.7%). Mean symptom onet time after surgery was 6.1±12.1 months and mean symptom mainenance period was 5.7±7.7 months. Difference of preoprative and postoperative duodenal angles were -3.5±10.7 degree and 9.1±17.6 degree in No symptom group and PCS group, respectively (p=0.025). Incidence of duodenal adhesion to gallbladder bed was 40.0% versus 73.3% (p=0.065) and mean length of duodenum adhered to gallbladder bed was significantly different between the two groups (0.76±1.1 cm vs. 2.29±2.1 cm, p=0.019).

Conclusions : The duodenal dhesion to the gallbladder bed is thought be have some effect on