To study and analyze the clinical application value of laparoscopic ultrasonography in patients with complex intrahepatic bile duct stones, in order to provide a more safe and effective treatment for this disease.

The clinical data of 101 patients with complex intrahepatic bile duct stones admitted to Heilongjiang Hospital from January 2017 to November 2019 were retrospectively analyzed. All the patients were treated with laparoscopic hepatectomy, and underwent laparoscopic ultrasonic surgical exploration during the operation. The perioperative indicators, postoperative complications, conversion to laparotomy, admission to ICU and stone recurrence were analyzed. Serum ALT, ALB, AST, GGT and ALP levels of the patients before and after operation were compared.

The operative time was (188.23±54.29) min, the intraoperative blood loss was (210.30±98.74) ml, the postoperative drainage time was (3.48±0.91) d, the postoperative hospital stay was (5.21±1.05) d, and the residual stone rate was 1.98% (2/101). The transfer rate of patients to laparotomy was 3.96% (4/101), and the proportion of patients admitted to ICU and recurrence of stones was 20.79% (21/101) and 3.96% (4/101), respectively. Complications occurred in 7 patients, accounting for 6.93%, including 2 cases of biliary leakage, 3 cases of postoperative hemorrhage, 2 cases of abdominal infection, and no pulmonary infection. Postoperative serum ALT, AST, GGT and ALP level were significantly lower than those before surgery, while ALB level was significantly higher than that before surgery (P<0.05).

The application of laparoscopic ultrasonography in patients with complex intrahepatic bile duct stones can promote the early recovery of patients, reduce the risk of postoperative complications, and is worthy of clinical application.