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Clinical Study on Using Laparoscopic Sentinel Lymph Node Navigation Combined With Dual Endoscopy Surgery for Early Gastric Cancer

NCT07708012 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-07-16

No results posted yet for this study

Summary

Gastric cancer is a common malignant tumour worldwide, and in China, the incidence and mortality rates of gastric cancer remain high. Standardised surgical treatment is effective, but the normal structure of the stomach undergoes irreversible changes, leading to a series of adverse reactions. At the same time, some early-stage gastric cancer patients cannot have the lesions completely removed endoscopically, and conventional surgery can affect postoperative normal life. Therefore, laparoscopic and endoscopic cooperative surgery has become a focus for precise stomach-preserving surgery. Participants meeting the surgical criteria are selected, and after discussing the treatment plan with their families and signing informed consent forms, relevant examinations are completed. During surgery, lesions are explored together using laparoscopy and endoscopy, then a fluorescent tracer is injected around the lesion and the lesion boundary is marked. Fifteen minutes after injecting the fluorescent tracer, the illuminated perigastric lymph nodes are the sentinel lymph node region (SLNB), and all fluorescent lymph nodes (sentinel lymph nodes) are removed and sent for intraoperative frozen pathology. If the SLNB is negative: a dual-endoscope combined local gastric resection (endoscope combined with laparoscopic local gastric resection or a modified procedure) is performed to completely remove the lesion, ensuring a negative margin. If the SLNB is positive: immediate conversion to laparoscopic-assisted radical gastrectomy (D2 lymph node dissection) is carried out. For SLNB-negative cases, the dual-endoscope combined local gastric resection specimen is placed in a retrieval bag for full removal and examination, with the stomach wall incision then closed by suturing or using a stapler. Postoperative follow-up includes monitoring tumour outcomes and quality of life.

Conditions

  • Early-stage Upper Gastrointestinal Cancer
  • Stomach Cancer, Adenocarcinoma
  • Laparoscopy-assisted Surgery
  • Endoscope

Interventions

PROCEDURE

Combined binocular surgery

1. Inject the fluorescent dye under the endoscope to mark the lesion. 2. Remove the sentinel lymph node area highlighted by fluorescence after 15 minutes. 3. If no lymph node metastasis is found in the sentinel lymph node area (SLNB negative), perform a combined double-scope local gastrectomy (endoscopic combined with laparoscopic local gastrectomy or a modified procedure), completely remove the primary lesion, and ensure negative margins. 4. The local excision specimen should be fully spread and fixed within 20-30 minutes after removal, and sliced continuously at 2 mm intervals. The pathological report needs to include key information such as tissue type, depth of infiltration, margins and vascular invasion. 5. Postoperative patients are managed according to the standard postoperative pathway. Follow-ups are done at 1, 3, 6, 12, 24, and 36 months after surgery, and then annually, including physical exams, tumour marker tests, imaging checks, and quality of life questionnaires.

Sponsors & Collaborators

  • wangdongsheng

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-01
Primary Completion
2028-01-01
Completion
2028-01-01

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07708012 on ClinicalTrials.gov