摘要目的 评价牙线辅助牵引法在胃底固有肌层肿瘤行内镜全层切除术(EFTR)中的应用价值.方法 2016年1—12月,复旦大学附属中山医院内镜中心行牙线辅助牵引法EFTR的24例胃底固有肌层肿瘤病例纳入牵引组,按照肿瘤大小1:1配对,收集2015年1—12月行传统EFTR的24例胃底固有肌层肿瘤病例纳入传统组,对比分析2组的肿瘤切除时间、患者住院时间及并发症发生率.结果 2组在患者平均年龄、性别构成方面,差异均无统计学意义(P>0.05).牵引组肿瘤切除平均时间为(10.8±2.8)min,传统组为(19.0±4.7)min(t=7.298,P<0.05).牵引组术后平均住院时间为(3.2±0.5)d,传统组为(3.2±0.5)d(t=0.291,P=0.772).2组术后均未发生迟发性出血或迟发性穿孔等并发症.结论 牙线辅助牵引法EFTR治疗胃底固有肌层肿瘤安全、有效,牙线牵引可以辅助暴露肿瘤边界,实现直视下切割,使手术层次更加清晰,从而简化手术,减少肿瘤切除时间.

abstractsObjective To explore the clinical value of dental floss traction-assisted endoscopic full-thickness resection ( EFTR) for muscularis propria tumor in gastric fundus. Methods Twenty-four patients with muscularis propria tumor in gastric fundus and undergoing EFTR with traction of dental floss from January to December in 2016 in Endoscopy Center of Zhongshan Hospital were enrolled in the trial group. Another 24 patients undergoing traditional EFTR from January to December in 2015 were enrolled in the control group. The control group was paired with the trial group according to tumor size. The differences in tumor resection time, hospitalization time, and complication rate were compared between the two groups. Results There were no significant differences in the mean age and gender composition between the two groups ( both P>0. 05) . The tumor resection time of the trial group was shorter than that of the control group ( 10. 8 ± 2. 8 min VS 19. 0 ± 4. 7 min, t = 7. 298, P<0. 05 ) . There was no significant difference in postoperative hospital stay between the two groups ( 3. 2 ± 0. 5 days VS 3. 2 ± 0. 5 days, t=0. 291, P=0. 772) . No postoperative delayed bleeding or perforation and other complications occurred in the two groups. Conclusion Dental floss traction-assisted EFTR is safe and effective to treatment of muscularis propria tumors in gastric fundus, which can expose the tumor boundary, so that the surgical level may be clearer to simplify the operation and reduce the tumor resection time.