摘要内镜全层切除术（EFTR）能完全切除消化道管壁深层的黏膜下肿瘤，具有广阔的临床运用前景，但复杂的手术操作和高危的手术风险限制了它的应用推广。各种辅助牵引技术有望降低EFTR的手术难度及手术风险，提高手术成功率，本文就各种辅助牵引技术在EFTR中的应用做一综述，为临床医生提供参考。钛夹丝线联合牵引法操作简单、应用较多，但其牵引力小，钛夹有脱落的风险；圈套器牵引法和钛夹-圈套器牵引法具有拉力大的优势，但其推力也受圈套器硬度影响；抓取钳牵引法牵引点灵活易调整，但需使用双钳道内镜、后屈位难操作；透明帽辅助牵引法和全层切除装置辅助牵引法用时较短、容易推广，但其可切除病灶受限，病灶的位置大小均可能影响其成功率；相比之下，缝合环-T型针组织锚辅助法切除范围大，但操作复杂、可行性未得到证实；机器人辅助法虽然有灵活操作、可视化优的长处，但其成本昂贵、难度较高。虽然目前还未有磁锚定技术在EFTR中的应用报道，但其在EFTR的辅助牵引中可能会有不错的运用前景。

abstractsEndoscopic full-thickness resection (EFTR) allows completely resecting deep submucosal tumors (SMTs) in the gastrointestinal wall, which has a broad application prospect in clinic. However, its application and promotion are limited by complex surgical procedures and high surgical risk. Various auxiliary traction techniques are expected to reduce the operation difficulty and risk of EFTR and improve its operative success rate. To provide a reference for clinicians, we summarize various auxiliary traction techniques in EFTR in this article. The clip-with-line method is simple to operate and widely used, whereas its traction is limited and there is a risk of clip falling off. The snare traction method and the clip-snare traction method has advantage of large traction force, but its thrust is affected by the hardness of snare. The traction point of the grasping forceps traction method is flexible and easy to adjust. Nevertheless, it requires the use of a dual-channel upper endoscope, which is difficult to operate. The transparent cap traction method and the full-thickness resection device traction method takes a short time and is easy to promote, whereas the resectable lesion is limited, and the size of the lesion may affect the success rate. In contrast, the suture loop needle-T-tag tissue anchors assisted method has a large resection range, but the operation is complicated and the feasibility has not been verified. The robot-assisted method has flexible operation and excellent visualization, whereas it is expensive and difficult to operate. There is no report of the application of magnetic anchor technology in EFTR, but it may have good application prospects in the auxiliary traction of EFTR.