BACKGROUND Endoscopic nasobiliary drainage (ENBD) is widely used for biliary decompression in patients with biliary disease. However, it is difficult to reposition a nasobiliary catheter from the mouth to nostril. We developed a new device, which has a curved flexible loop and bar-handle, for repositioning of ENBD catheter. The aim of this study was to evaluate the usefulness of the new loop-device for facilitating the repositioning of an ENBD catheter from the mouth to nostril. METHODS Between January 2015 and December 2017, a comparative observational study was performed to evaluate the time taken for repositioning a nasobiliary catheter during endoscopic retrograde cholangiopancreatography (ERCP) and compare the results of ENBD procedure between the new loop-device and conventional techniques. In the subgroup analysis, we evaluated the occurrence of oral cavity injury and the time taken to transfer ENBD catheter from the mouth to nostril. RESULTS In all, 145 ENBD procedures were performed using these two techniques. The procedure time was significantly shorter in the new technique group than in the conventional group. (44 s vs. 194 s, p < 0.001). The total success rate of new device technique was 97.3%. No complication, including oral cavity injury, was observed. CONCLUSIONS The technique using our new loop-device was useful for repositioning a nasobiliary catheter from the mouth to nostril in ERCP. The new device does not require the removal of the mouthpiece before ENBD positioning, which can help perform the ENBD procedure rapidly and avoid the finger injury of endoscopists.

中文翻译：

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内窥镜逆行胰胆管造影术中将鼻胆管从口腔重新定位到鼻孔的新技术。

背景技术内窥镜鼻胆管引流术（ENBD）被广泛用于胆道疾病患者的胆道减压。但是，很难将鼻胆导管从嘴部重新定位到鼻孔。我们开发了一种新设备，该设备具有弯曲的柔性环和条形手柄，用于重新定位ENBD导管。这项研究的目的是评估新型环管装置对促进ENBD导管从口腔到鼻孔的重新定位的有用性。方法在2015年1月至2017年12月之间，进行了一项比较观察性研究，以评估在内镜逆行胰胆管造影（ERCP）期间重新放置鼻胆导管所需的时间，并比较新环管装置和常规技术之间ENBD程序的结果。在子组分析中，我们评估了口腔损伤的发生情况以及将ENBD导管从口腔转移到鼻孔所花费的时间。结果总共使用这两种技术执行了145次ENBD程序。新技术组的手术时间明显短于常规组。（44 s对194 s，p <0.001）。新设备技术的总成功率为97.3％。没有观察到并发症，包括口腔损伤。结论使用我们的新型环路装置的技术可用于将鼻胆导管从口腔中重新定位到ERCP中的鼻孔。新设备不需要在ENBD定位之前取下烟嘴，这可以帮助快速执行ENBD程序并避免内镜医师的手指受伤。