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.
目的： 分析内镜逆行胰胆管造影术（ERCP）取净胆总管结石后使用去侧翼单猪尾胆管支架引流胆汁的疗效。 方法： 回顾性选择2019年1月至2023年9月同济大学附属东方医院胆石病中心因胆总管结石行ERCP治疗并置入单猪尾胆管支架的患者，根据胆管支架的侧翼是否保留，分为去侧翼组（侧翼不保留）和侧翼组（侧翼保留），随访1~3个月，比较两组术后2 d、1周及1个月支架脱落率，术后1周及1个月并发症发生率。 结果： 共纳入患者402例，男177例，女225例，年龄32~83（58±12）岁；其中去侧翼组215例，侧翼组187例。去侧翼组术后2 d支架脱落率高于侧翼组［12.6%（27/215）比5.9%（11/187），P=0.022］；术后1周支架脱落率高于侧翼组［87.0%（187/215）比25.1%（47/187），P<0.001］；术后1个月支架脱落率高于侧翼组［97.2%（206/215）比67.3%（126/187），P<0.001］。去侧翼组术后1周并发症和侧翼组差异无统计学意义［10.7%（23/215）比8.6%（16/187），P>0.05］；术后1个月并发症发生率低于侧翼组［0.9%（2/215）比9.6%（18/187），P<0.001］。 结论： ERCP取净胆总管结石后应用去侧翼单猪尾胆管支架引流胆汁，支架自然脱落率高、并发症发生率低。.