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Accepted for/Published in: JMIR Research Protocols

Date Submitted: Aug 20, 2025
Date Accepted: Jan 5, 2026

The final, peer-reviewed published version of this preprint can be found here:

Tunnel Anastomosis vs Double-Tract Jejunal Interposition Reconstruction After Proximal Gastrectomy: Protocol for a Multicenter Prospective Randomized Controlled Trial

LI G, Xu H, Wang M, Zhou J, Wu X, Zhou X, Xie Q, Peng R, Yue C, Wei W, Huang L, Wang X, Wang H, Chen L, Gu R, Chen H, Ming X, Wen X, Xu W, Sun G, Fan H, Wang Z, Yang L

Tunnel Anastomosis vs Double-Tract Jejunal Interposition Reconstruction After Proximal Gastrectomy: Protocol for a Multicenter Prospective Randomized Controlled Trial

JMIR Res Protoc 2026;15:e82712

DOI: 10.2196/82712

PMID: 41894519

Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.

Tunnel anastomosis versus double tract jejunal interposition reconstruction after proximal gastrectomy: Study protocol of a multicenter prospective randomized controlled trial

  • Gang LI; 
  • Hao Xu; 
  • Meng Wang; 
  • Jin Zhou; 
  • Xiaoyu Wu; 
  • Xiaohua Zhou; 
  • Qingyu Xie; 
  • Rui Peng; 
  • Chao Yue; 
  • Wei Wei; 
  • Lingli Huang; 
  • Xiaoxiao Wang; 
  • Haitian Wang; 
  • Liang Chen; 
  • Rongmin Gu; 
  • Huanqiu Chen; 
  • Xuezhi Ming; 
  • Xu Wen; 
  • Weiguo Xu; 
  • Guangli Sun; 
  • Hao Fan; 
  • Zhe Wang; 
  • Longhao Yang

ABSTRACT

Background:

Tunnel anastomosis is a novel anastomotic technique for digestive tract reconstruction following proximal gastrectomy. Our previous retrospective study demonstrated its favorable antireflux effect. In this study, we will prospectively compare this technique with the currently more prevalent double tract jejunal interposition reconstruction technique to further validate its safety and efficacy. Methods and analysis: This is a multicenter, prospective, randomized controlled study that will randomly enroll 240 patients who undergo proximal gastrectomy. The study will be divided into two groups: the tunnel anastomosis (TA) group and the double tract jejunal interposition reconstruction (DTJIR) group, with 120 patients in each group. Patients will undergo clinical assessments and complete questionnaires preoperatively, as well as at the 3rd, 6th, and 12th months postoperatively. The primary outcome is the incidence of reflux esophagitis. The secondary outcomes includ perioperative safety, postoperative quality of life, and postoperative nutritional status. Discussion: To our knowledge, this is the first prospective study on this technique, aiming to provide novel insights into the methods of digestive reconstruction following proximal gastrectomy. Trial registration number: The trial was registered on March 11th 2022 with registration number ChiCTR2200057397.


 Citation

Please cite as:

LI G, Xu H, Wang M, Zhou J, Wu X, Zhou X, Xie Q, Peng R, Yue C, Wei W, Huang L, Wang X, Wang H, Chen L, Gu R, Chen H, Ming X, Wen X, Xu W, Sun G, Fan H, Wang Z, Yang L

Tunnel Anastomosis vs Double-Tract Jejunal Interposition Reconstruction After Proximal Gastrectomy: Protocol for a Multicenter Prospective Randomized Controlled Trial

JMIR Res Protoc 2026;15:e82712

DOI: 10.2196/82712

PMID: 41894519

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