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中华胃肠内镜电子杂志 ›› 2025, Vol. 12 ›› Issue (03) : 177 -183. doi: 10.3877/cma.j.issn.2095-7157.2025.03.003

论著

两种内镜术式切除10 mm以下直肠神经内分泌肿瘤的前瞻性随机对照研究
乔文1, 郭雨栋2,(), 唐秀芬2, 唐丽欣2, 奚腾飞2, 祁紫娟3   
  1. 1157011 牡丹江,牡丹江医科大学第一临床医学院
    2150000 哈尔滨,黑龙江省医院消化病院消化一科
    3150000 哈尔滨,黑龙江省医院消化病院病理科
  • 收稿日期:2025-05-10 出版日期:2025-08-15
  • 通信作者: 郭雨栋
  • 基金资助:
    黑龙江省卫生健康委科技计划资助项目(20220303030738、20220303030724)

Comparison of two endoscopic resection methods for rectal neuroendocrine neoplasm≤10 mm: A prospective randomized controlled study

Wen Qiao1, Yudong Guo2,(), Xiufen Tang2, Lixin Tang2, Tengfei Xi2, Zijuan Qi3   

  1. 1First Clinical Medical College of Mudanjiang Medical University, Mudanjiang 157011, China
    2Department of Gastroenterology, Heilongjiang Provincial Hospital, Harbin 150000, China
    3Department of Pathology, Heilongjiang Provincial Hospital of Gastroenterology, Harbin 150000, China
  • Received:2025-05-10 Published:2025-08-15
  • Corresponding author: Yudong Guo
引用本文:

乔文, 郭雨栋, 唐秀芬, 唐丽欣, 奚腾飞, 祁紫娟. 两种内镜术式切除10 mm以下直肠神经内分泌肿瘤的前瞻性随机对照研究[J/OL]. 中华胃肠内镜电子杂志, 2025, 12(03): 177-183.

Wen Qiao, Yudong Guo, Xiufen Tang, Lixin Tang, Tengfei Xi, Zijuan Qi. Comparison of two endoscopic resection methods for rectal neuroendocrine neoplasm≤10 mm: A prospective randomized controlled study[J/OL]. Chinese Journal of Gastrointestinal Endoscopy(Electronic Edition), 2025, 12(03): 177-183.

目的

比较无黏膜下注射套扎辅助内镜黏膜下切除术(ESMR-L)与内镜黏膜下剥离术(ESD)切除10 mm以下直肠神经内分泌肿瘤(RNEN)的疗效及安全性。

方法

自2023年1月至2025年4月在黑龙江省医院消化病院开展前瞻性随机对照研究,纳入住院行直肠神经内分泌肿瘤(长径≤10 mm,单发)内镜下切除的患者,随机数字表法按1∶1分为ESMR-L组和ESD组,所有手术均由高年资内镜医师完成,比较两组手术相关指标。

结果

最终纳入81例患者,ESMR-L组40例、ESD组41例。术后病理诊断证实病灶局限于黏膜层及黏膜下层,无淋巴血管侵犯,均为G1级。两组病变完整切除率均为100%,水平切缘均为阴性,ESD组14例、ESMR-L组3例病灶紧邻垂直切缘(34.15% vs. 7.50%, P=0.004);ESMR-L组手术耗时短于ESD组(24 min vs. 39 min,P<0.001),手术费用低于ESD组(3760元vs. 7070元,P<0.001);两组随访期内(中位随访时间为11个月)均未观察到并发症及病变复发。

结论

对于长径10 mm以下的直肠神经内分泌瘤,两种切除方法的疗效及安全性相当,而ESMR-L能提高切除效率,缩短手术时间、降低手术费用。

Objective

To compare the efficiency and safety between ligation-assisted endoscopic submucosal resection (ESMR-L) without submucosa injection and endoscopic submucosal dissection (ESD) in resecting rectal neuroendocrine neoplasm with a diameter no more than 10 mm.

Methods

From January 2023 to April 2025, a prospective randomized controlled study was conducted at the Digestive Disease Hospital of Heilongjiang Provincial Hospital.Patients admitted to our department for endoscopic resection of rectal neuroendocrine tumors (with a diameter ≤10 mm, single lesion) were enrolled.Using a random number table, patients were evenly divided into the ESMR-L group and the ESD group in a 1∶1 ratio.All procedures were performed by senior endoscopists, and the procedure-related outcomes were compared between the two groups.

Results

A total of 81 cases were included in the analysis, including 40 in the ESMR-L group and 41 in the ESD group.Postoperative pathology confirmed that the lesion was limited to the mucosal layer and submucosal layer, without lymphatic vascular invasion, and all were grade G1.The complete resection rate in both groups was 100%.The horizontal margins were negative, but 14 cases in the ESD group and 3 cases in the ESMR-L group had lesions close to the vertical margins (34.15% vs. 7.50%, P=0.004). The ESMR-L group had a shorter operation time than the ESD group (24 minutes vs. 39 minutes, P<0.001) and lower operation cost than the ESD group (3 760 RMB vs. 7 070 RMB, P<0.001). No complications or recurrence of lesions were observed in the two groups during the follow-up period (median 11 months).

Conclusion

For RNET with a diameter ≤10 mm, the efficacy and safety of the two resection methods are comparable, while ESMR-L without submucosa injection can improve the resection efficiency, significantly shorten the operation time and lower the cost.

图1 直肠神经内分泌瘤的两种内镜下切除方式注:A:距肛门口2 cm见一枚直径约6 mm的半球形黏膜下隆起;B:ESD法剥离病变;C: ESD切除病变的术后创面;D: ESD切除病变的术后标本;E:距肛门口1 cm见一枚直径8 mm的半球形黏膜下隆起;F:套扎器套扎肿瘤根部,圈套器在套扎环的下方进行圈套电切;G:ESMR-L法切除病变的术后创面;H: ESMR-L法切除病变的术后标本;ESD:内镜黏膜下剥离术;ESMR-L:套扎辅助内镜黏膜下切除术
图2 研究流程图注:RNEN:直肠神经内分泌肿瘤;ESD:内镜黏膜下剥离术;ESMR-L:套扎辅助内镜黏膜下切除术;EUS:超声内镜检查
表1 两组临床、内镜及病理特点比较(例)
表2 两组紧邻垂直切缘病灶特点比较[例(±s)]
表3 两组手术相关指标比较[例(%)]
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