Evidence map›Paper›PMID 41489800›Full record

Trial reportGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2026

Indocyanine green fluorescence-guided proximal margin identification in laparoscopic distal gastrectomy: a randomized clinical trial.

Yize Liang, Zhibo Yan, Meng Wei, Tongchao Zhang, Yongqi Yan, Zewei Cheng, Junnan Du, Jun Ouyang, Menghui Wang, Yangjia Li and 2 more

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Yize Liang *Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Zhibo Yan *Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Meng Wei *Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Tongchao ZhangClinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, China.
Yongqi YanDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Zewei ChengDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Junnan DuDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Jun OuyangDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Menghui WangDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Yangjia LiDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Xiaohan CuiDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Wenbin YuDepartment of General Surgery, Qilu Hospital of Shandong University, Jinan, China. wenbin_yu2003@163.com.ORCID 0000-0001-7111-3780

Funding

Horizontal Project of Shandong University 6010123193Horizontal Project of Shandong University 6010125120
6 · The paper itself

Abstract

backgroundAchieving negative resection margins is critical in GC surgery, yet intraoperative tumor localization remains challenging, particularly in minimally invasive approaches such as LDG. This study was conducted to evaluate the safety, feasibility, and efficacy of indocyanine green (ICG) fluorescence imaging for real-time margin identification during laparoscopic distal gastrectomy (LDG) for gastric cancer (GC).

methodsThis randomized clinical trial included 422 patients with GC (cT1-4a, N0/+, M0) between September 2019 and December 2021, who underwent LDG with or without ICG fluorescence guidance. Oncological and perioperative outcomes were compared between the groups.

resultsThe ICG group demonstrated a significantly lower rate of positive initial proximal margins (0% vs. 5.5%, P < 0.001) and reduced the need for total gastrectomy in middle third gastric cancer (0.5% vs. 3.8%, P = 0.037). In our study cohort, ICG guidance standardized resection margins (median 5.0 cm, IQR 3.8–5.6) with fewer deviations from guideline recommendations (P = 0.018). Pathological analysis confirmed the absence of tumor cells beyond 4 cm from the gross margin in our study cohort. The ICG group also had shorter operation times (217.60 ± 31.11 vs. 225.48 ± 27.69 min, P = 0.008) and fewer pulmonary complications (3.0% vs. 8.0%, P = 0.046). At 3-year follow-up, no significant survival difference was observed (DFS: 74.4% vs. 68.7%, P = 0.220; OS: 82.4% vs. 79.4%, P = 0.437).

conclusionsICG fluorescence imaging improved margin accuracy, reduced non-indicated total gastrectomies, and enhanced operative efficiency. Its application in LDG provides a potential standardized strategy for achieving R0 resection.

Indexed as

GastrectomyIndocyanine GreenLaparoscopyStomach NeoplasmsAgedFemaleHumansMaleMargins of ExcisionMiddle AgedOptical ImagingIndocyanine GreenFluorescence imagingGastric cancerIndocyanine greenLaparoscopic distal gastrectomyRandomized controlled trialResection margin

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.