METHODS: Thirty-four patients who had undergone lithotripsy for retained CBD stones with no evidence of filling defects in occluded balloon cholangiography from March 2017 to October 2018 were included in the study. After balloon cholangiography, the bile duct was evaluated by SOC for complete evacuation of the stones. The detected residual CBD stones were directly retrieved by inserting the newly developed Dormia basket into the working channel of the SOC. The incidence of residual stones detected by SOC and the success rate of residual stone retrieval by SOC were investigated.
RESULTS: Digital SOC was successfully performed in all patients. Of these, 11 patients (32.4%) had residual CBD stones. The residual stones were successfully removed in 10 patients (90.9%) by SOC using the Dormia basket, except in one case of residual stones left in the hepatic duct. There were no adverse events associated with the SOC procedures or direct stone removal.
CONCLUSIONS: Digital SOC combined with the newly developed Dormia basket was useful for the detection and extraction of residual CBD stones under direct visualization after lithotripsy.
方法:本研究纳入了2017年3月至2018年10月的34例患者,这些患者因保留的CBD结石而接受了碎石术,没有证据表明闭塞的球囊胆管造影存在填充缺陷。球囊胆管造影后,通过SOC评估胆管是否完全排空结石。通过将新开发的Dormia篮插入SOC的工作通道,可以直接取回检测到的残留CBD结石。对SOC检出残石的发生率和SOC取石成功率进行了调查。
结果:所有患者均成功进行了DigitalSOC。其中,11例患者(32.4%)有残留的CBD结石。使用Dormia篮通过SOC成功清除了10例患者(90.9%)的残余结石,除了一例残留在肝导管中的结石。没有与SOC程序或直接取石相关的不良事件。
结论:数字SOC结合新开发的Dormia篮对于碎石术后在直接可视化下检测和提取残留的CBD结石很有用。