Evidence map›Paper›PMID 30506394›Full record

Trial reportGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association2019

Clinical advantages of robotic gastrectomy for clinical stage I/II gastric cancer: a multi-institutional prospective single-arm study.

Ichiro Uyama, Koichi Suda, Masaya Nakauchi, Takahiro Kinoshita, Hirokazu Noshiro, Shuji Takiguchi, Kazuhisa Ehara, Kazutaka Obama, Shiro Kuwabara, Hiroshi Okabe and 1 more

Abstract readClinical Trial, Phase IIMulticenter Study
PubMed Publisher
In one paragraph

Trial report in Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 142 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
142citing papers in PubMed, 6 pooled it
–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

142 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Japanese gastric cancer treatment guidelines 2025 (7th edition).Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Guideline
  2. Pooled it
  3. Pooled it
  4. Robotic gastrectomy for gastric cancer: systematic review and future directions.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2023
    Pooled it
  5. Pooled it
  6. Pooled it
  7. Safety and feasibility of robot-assisted remote radical gastrectomy for gastric cancer based on 5G communication technology (FUTURE-04): a prospective, single-arm clinical trial.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Trial
  8. Trial
  9. Negative impact of intraoperative blood loss on long-term outcome after curative gastrectomy for advanced gastric cancer: exploratory analysis of the JCOG1001 phase III trial.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2022
    Trial
  10. Trial
  11. Clinical advantages of robotic gastrectomy for gastric cancer over conventional laparoscopic approach: a retrospective cohort study using a nationwide registry database in Japan.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Article
  12. Comparison of oncological outcomes between robotic and laparoscopic surgeries for gastric cancer: a multi-institutional cohort study in Japan.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

82 more citing papers are in PubMed but not listed here.

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

11 authors.

Ichiro UyamaDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan. iuyama@mac.com.
Koichi SudaDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan.
Masaya NakauchiDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan.
Takahiro KinoshitaGastric Surgery Division, National Cancer Center Hospital East, Kashiwa, Japan.
Hirokazu NoshiroDepartment of Surgery, Saga University Faculty of Medicine, Saga, Japan.
Shuji TakiguchiDepartment of Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan.
Kazuhisa EharaDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Kazutaka ObamaDepartment of Surgery, Kyoto City Hospital, Kyoto, Japan.
Shiro KuwabaraDigestive Surgery, Niigata City General Hospital, Niigata, Japan.
Hiroshi OkabeDepartment of Surgery, Otsu City Hospital, Otsu, Japan.
Masanori TerashimaDivision of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRobotic gastrectomy (RG) for gastric cancer (GC) has been increasingly performed for a decade; however, evidence for its use as a standard treatment has not yet been established. The present study aimed to determine the safety, feasibility, and effectiveness of RG for GC.

methodsThis multi-institutional, single-arm prospective study, which included 330 patients from 15 institutions, was designed to compare morbidity rate of RG with that of a historical control (conventional laparoscopic gastrectomy, LG). This trial was approved for Advanced Medical Technology ("Senshiniryo") B. The included patients were operable patients with cStage I/II GC. The primary endpoint was morbidity (Clavien-Dindo Grade ≥ IIIa). The specific hypothesis was that RG could reduce the morbidity rate to less than half of that with LG (6.4%). A sample size of 330 was considered sufficient (one-sided alpha 0.05, power 80%).

resultsAmong the 330 study patients, the protocol treatment was suspended in 4 patients. Thus, 326 patients fully enrolled and completed the study. The median patient age and BMI were 66 years and 22.4 kg/m

conclusionsRG for cStage I/II GC is safe and feasible. It may be effective in reducing morbidity with LG.

Indexed as

Robotic Surgical ProceduresAdenocarcinomaAdultAgedAged, 80 and overFemaleGastrectomyHumansMaleMiddle AgedOperative TimePostoperative ComplicationsStomach NeoplasmsGastrectomyMinimally invasive surgical proceduresPostoperative complicationsRobotic surgical procedureStomach neoplasms

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.