[A preliminary study on the application of two-point traction with guidewire method in percutaneous transhepatic sinus tract dilation].

Objective: To explore the feasibility and effectiveness of the two-point traction with guidewire method to improve the safety of percutaneous transhepatic sinus tract dilation. Methods: The clinical data of 18 patients underwent the two-point traction guided by percutaneous transhepatic sinus dilation between January 2013 and July 2017 in Shengjing Hospital of China Medical University were analyzed retrospectively. The operation time, volume of intraoperative blood loss and postoperative complications were recorded. Results: All of the 18 patients were treated successfully. The mean size of the percutaneous transhepatic sinus tract was (18.6±2.3) Fr. The operation time was 15-45 min, with an average of 30 minutes, and the average intraoperative blood loss was about 11.7 ml. The incidence of postoperative complications was 22.2% (4/18), including cholangitis in 3 patients, pancreatitis in 1 case. All the complications were relieved after symptomatic treatment, no severe complications (biliary tract perforation or severe haemorrhage) occurred. A total of (3.3 ± 2.6) times cholangioscopic explorations for stone extraction were performed, with a overall clearance rate of 64.7% (11/17). Conclusions: From the results of limited patient data in this group, the two-point traction with guidewire can provide the exact guidance for percutaneous transhepatic sinus tract dilation, which is effective and easily conducted, but still need further clinical study to confirm.