Evidence map›Paper›PMID 36484859›Full record

ArticleSurgical endoscopy2023

Three-year outcomes of robotic gastrectomy versus laparoscopic gastrectomy for the treatment of clinical stage I/II gastric cancer: a multi-institutional retrospective comparative study.

Koichi Suda, Miyoshi Sakai, Kazutaka Obama, Yukie Yoda, Susumu Shibasaki, Tsuyoshi Tanaka, Masaya Nakauchi, Shigeo Hisamori, Tatsuto Nishigori, Ataru Igarashi and 3 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 3% of its field
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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. 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
  5. 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
  6. Comparison of long-term outcomes of robotic gastrectomy and laparoscopic gastrectomy using the modified age-adjusted Charlson Comorbidity Index.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Escalation and de-escalation in surgery for gastric cancer.International journal of clinical oncology · 2025
    Review
  15. Robotic and laparoscopic gastrectomy for gastric cancer: comparative insights into perioperative performance and three-year survival outcomes.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
    Article
  16. Article
  17. Article
  18. Review
  19. Article
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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

13 authors at 7 institutions in 1 country.

Koichi SudaDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan. ko-suda@fujita-hu.ac.jp.ORCID 0000-0002-0423-1565
Miyoshi SakaiEP-CRSU Co., Ltd, Tokyo, Japan.
Kazutaka ObamaDepartment of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Yukie YodaDepartment of Surgery, Faculty of Medicine, Saga University, Saga, Japan.
Susumu ShibasakiDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan.
Tsuyoshi TanakaDepartment of Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan.
Masaya NakauchiDepartment of Advanced Robotic and Endoscopic Surgery, Fujita Health University, Toyoake, Japan.
Shigeo HisamoriDepartment of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Tatsuto NishigoriDepartment of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Ataru IgarashiUnit of Public Health and Preventive Medicine, Yokohama City University School of Medicine, Yokohama, Japan.
Hirokazu NoshiroDepartment of Surgery, Faculty of Medicine, Saga University, Saga, Japan.
Masanori TerashimaDivision of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan.
Ichiro UyamaDepartment of Advanced Robotic and Endoscopic Surgery, Fujita Health University, Toyoake, Japan.
Fujita Health University · JPKyoto University · JPFujita Health University Hospital · JPSaga University · JPShinEtsu Chemical (Japan) · JPShizuoka Cancer Center · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOncological benefits of robotic gastrectomy (RG) remain unclear. We aimed to determine and compare the 3-year outcomes of RG and laparoscopic gastrectomy (LG) for the treatment of gastric cancer.

methodsThis was a multi-institutional retrospective study of patients who prospectively underwent RG in a previous study (UMIN000015388) and historical controls who underwent LG. Operable patients with cStage I/II primary gastric cancer were enrolled. The inverse probability of treatment weighting method based on propensity scores was used to balance patient demographic factors and surgeon volume between the RG and LG groups. The primary outcome measure was the 3-year overall survival rate (3yOS).

resultsOf the 1,127 patients in the previous study, 326 and 752 patients in the RG and LG groups, respectively, completed the study. The standardized difference of all confounding factors was reduced to 0.09 or less after weighting. In the weighted population, 3yOS was 96.3% and 89.6% in the RG and LG groups, respectively (hazard ratio [HR] 0.34 [0.15, 0.76]; p = 0.009), whereas there was no difference in 3-year recurrence-free survival rate (3yRFS) between the two groups (HR 0.58 [0.32, 1.05]; p = 0.073). Sub-analyses showed that RG improved 3yOS (HR 0.05 [0.01, 0.38]; p = 0.004) and 3yRFS (HR 0.05 [0.01, 0.34]; p = 0.003) in patients with pStage IA disease. Recurrence rates and patterns were similar between the RG and LG groups. RG did not improve the morbidity rate, however, it attenuated some of the adverse events, including anastomotic leakage and intra-abdominal abscess. RG improved estimated blood loss and duration of postoperative hospitalization.

conclusionThis study showed surgical and oncological safety of RG for cStage I/II gastric cancer considering the 3-year outcomes, compared with those of LG.

Indexed as

LaparoscopyRobotic Surgical ProceduresStomach NeoplasmsGastrectomyHumansPropensity ScoreRetrospective StudiesGastrectomyMinimally invasive surgical proceduresPrognosisPropensity scoreRobotic surgical procedureStomach neoplasms

Identifiers

PMID36484859
OpenAlexW4310946905

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.