• Liwei Pang, Jindong Yuan, Yan Zhang, Yuwen Wang, and Jing Kong.
• Department of Biliary and Minimally Invasive Surgery, China Medical University Shengjing Hospital Shenyang, Liaoning, China.
• J Minim Access Surg. 2019 Jul 1; 15 (3): 192-197.

IntroductionWith the development of laparoscopic skills, the laparoscopic common bile duct exploration (LCBDE) and laparoscopic cholecystectomy (LC) has become the standard surgical procedure for choledocholithiasis. We usually use Hem-o-lok clips to control cystic duct and vessels, which is safe on most occasions and has few perioperative complications such as major bleeding, wound infection, bile leakage, and biliary and bowel injury. However, a rare complication of post-cholecystectomy clip migration (PCCM) increases year by year due to the advancement and development of LC, CBD exploration as well as the wide use of surgical ligation clips.Materials And MethodsSix patients whose clips are found dropping into CBD or forming T-tube sinus after laparoscopic surgery in our department.ResultsSix patients whose clips are found dropping into CBD (clip-stone) (3/6) or forming T-tube sinus (T clip-sinus) (3/6) after LCBDE or LC.ConclusionsPCCM is a rare but severe complication of LCBDE. A pre-operative understanding of bile duct anatomy, the use of the minimum number of clips and the harmonic scalpel during the surgeries is necessary. Considering clip-stone or clip-sinus in the differential diagnosis of patients with biliary colics or cholangitis after LCBDE even years after surgery, the detailed medical history and pre-operative examination are inevitable, especially for these patients who had undergone LCBDE.

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