Abstract
Objective: To analyze the effect of single pigtail bile duct stents without lateral wings bile duct drainage after removal of common bile duct stones in endoscopic retrograde cholangiopancreatography (ERCP). Methods: Patients who underwent ERCP and implantation of a single pigtail bile duct stent for choledocholithiasis in Cholelithic Center of East Hospital Affiliated to Tongji University from January 2019 to September 2023 were retrospectively selected and divided into lateral wingless group (without the lateral wing) and lateral wing group(with the lateral wing) according to whether the lateral wings of the single pigtail bile plastic stents were preserved. The patients were followed up for 1 to 3 months. The stent detachment rate at 2 days, 1 week and 1 month, as well as the incidence of postoperative complications at 1 week and 1 month after ERCP were compared between the two groups. Results: A total of 402 patients were included, including 177 males and 225 females, aged 32-83 (58±12) years. There were 215 cases in the lateral wingless group and 187 cases in the lateral wing group. The stent detachment rate in the lateral wingless group was higher than that in the lateral wing group at 2 days after ERCP [12.6% (27/215) vs 5.9% (11/187), P=0.022]. The stent detachment rate in the lateral wingless was higher than that in the lateral wing group at 1 week after ERCP [87.0% (187/215) vs 25.1% (47/187), P<0.001]. The stent detachment rate in the lateral wing group was higher than that in the lateral wing group at 1 month after ERCP [97.2% (206/215) vs 67.3% (126/187), P<0.001]. The incidence of postoperative complications at 1 week after ERCP revealed no statistical significance between the two groups[(10.7% (23/215) vs 8.6% (16/187), P>0.05]. The incidence of postoperative complications at 1 month after ERCP in the lateral wingless group was lower than that in the lateral wing group [0.9% (2/215) vs 9.6% (18/187), P=0.001]. Conclusion: After the removal of choledocholithiasis with ERCP, bile is drained by a single pigtail bile duct stent with lateral removal, which has a high rate of natural shedding and a low incidence of complications.
Published Version
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