Evidence map›Paper›PMID 36338596›Full record

ArticleAnnals of gastroenterological surgery2022

Prevalence and safety of robotic surgery for gastrointestinal malignant tumors in Japan.

Tatsuto Nishigori, Nao Ichihara, Kazutaka Obama, Ichiro Uyama, Hiroaki Miyata, Masafumi Inomata, Yoshihiro Kakeji, Yuko Kitagawa, Yoshiharu Sakai

Open access · goldAbstract read
In one paragraph

Article in Annals of gastroenterological surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Short-Term Outcomes and Cost of Robotic Versus Open Distal Pancreatectomy During the Initial Phase of a Robotic Pancreatectomy Program.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2026
    Article
  6. 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
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  8. Review
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  19. Review
  20. Robotic-Assisted Esophagectomy: Current Situation and Future Perspectives.Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia · 2023
    Review
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

9 authors at 3 institutions in 1 country.

Tatsuto NishigoriJapan Society for Endoscopic Surgery Tokyo Japan.ORCID https://orcid.org/0000-0002-4969-5590
Nao IchiharaDepartment of Healthcare Quality Assessment Graduate School of Medicine, The University of Tokyo Tokyo Japan.
Kazutaka ObamaJapan Society for Endoscopic Surgery Tokyo Japan.ORCID https://orcid.org/0000-0003-2924-6701
Ichiro UyamaJapan Society for Endoscopic Surgery Tokyo Japan.
Hiroaki MiyataDepartment of Healthcare Quality Assessment Graduate School of Medicine, The University of Tokyo Tokyo Japan.
Masafumi InomataJapan Society for Endoscopic Surgery Tokyo Japan.
Yoshihiro KakejiJapanese Society of Gastroenterological Surgery Tokyo Japan.ORCID https://orcid.org/0000-0002-2727-0241
Yuko KitagawaJapanese Society of Gastroenterological Surgery Tokyo Japan.
Yoshiharu SakaiJapan Society for Endoscopic Surgery Tokyo Japan.
The Japanese Society of Gastroenterological Surgery · JPKyoto University · JPTokyo Health Care University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aim: The National Health Insurance system has reimbursed robotic gastrointestinal surgery since April 2018 in Japan. Additionally, strict facility and surgeon standards were established by the government and the academic society. This study aimed to evaluate the prevalence and safety of robotic surgery using a Japanese nationwide web-based database. Methods: Patients who underwent the following robotic surgeries for malignant tumors in 2018 were included: esophagectomy (RE), total gastrectomy (RTG), distal gastrectomy (RDG), proximal gastrectomy (RPG), low anterior resection (RLAR), and rectal resections other than RLAR (RRR). The number of cases and surgical mortality rates each month were calculated to evaluate the prevalence and safety of robotic procedures. Results: A total of 3281 patients underwent robotic gastrointestinal surgery. The monthly number of robotic surgeries nearly doubled in April 2018 when they were initially reimbursed by the National Health Insurance system. Operative mortality rates were 0.9%, 0.4%, 0.2%, and 2.8% for RE (n = 330), RTG (n = 239), RDG (n = 1167), and RPG (n = 109), respectively. No mortality was observed in RLAR (n = 1062) or RRR (n = 374). Conclusion: Robotic surgery for gastrointestinal malignant tumors was safely introduced into daily clinical practice along with rigorous surgeon and facility standards in Japan.

Indexed as

gastrointestinal neoplasmsmortalityregistriesrobotic surgerysocial control

Identifiers

PMID36338596
PMCPMC9628217
OpenAlexW4280545055

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.