Evidence map›Paper›PMID 34755012›Full record

ArticleAnnals of gastroenterological surgery2021

Identification of patient subgroups with unfavorable long-term outcomes associated with laparoscopic surgery in a randomized controlled trial comparing open and laparoscopic surgery for colon cancer (Japan Clinical Oncology Group Study JCOG0404).

Shuji Saito, Tomonori Akagi, Hiroshi Katayama, Masashi Wakabayashi, Masafumi Inomata, Seiichiro Yamamoto, Masaaki Ito, Yusuke Kinugasa, Hiroyuki Egi, Yasuhiro Munakata and 9 more

Open access · goldAbstract read
In one paragraph

Article in Annals of gastroenterological surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 23 citations in OpenAlex.

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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

19 authors at 15 institutions in 1 country.

Shuji SaitoDivision of Surgery Gastrointestinal Center Yokohama Shin-Midori General Hospital Yokohama Japan.ORCID https://orcid.org/0000-0002-4899-3190
Tomonori AkagiDepartment of Gastroenterological and Pediatric Surgery Oita University Faculty of Medicine Oita Japan.ORCID https://orcid.org/0000-0002-0722-0343
Hiroshi KatayamaJapan Clinical Oncology Group Data Center/Operations Office National Cancer Center Hospital Tokyo Japan.ORCID https://orcid.org/0000-0002-9735-6630
Masashi WakabayashiJapan Clinical Oncology Group Data Center/Operations Office National Cancer Center Hospital Tokyo Japan.
Masafumi InomataDepartment of Gastroenterological and Pediatric Surgery Oita University Faculty of Medicine Oita Japan.ORCID https://orcid.org/0000-0002-8475-3688
Seiichiro YamamotoDepartment of Surgery Tokai University School of Medicine Kanagawa Japan.ORCID https://orcid.org/0000-0002-9879-1239
Masaaki ItoDepartment of Colorectal Surgery National Cancer Center Hospital East Chiba Japan.ORCID https://orcid.org/0000-0002-1101-2707
Yusuke KinugasaDepartment of Gastrointestinal Surgery Tokyo Medical and Dental University Tokyo Japan.
Hiroyuki EgiDepartment of Gastrointestinal Surgery and Surgical Oncology Ehime University Graduate School of Medicine Ehime Japan.ORCID https://orcid.org/0000-0001-8127-9290
Yasuhiro MunakataDepartment of Surgery Nagano Municipal Hospital Nagano Japan.
Yukihito KokubaDepartment of Gastroenterological Surgery St. Marianna University Yokohama Seibu Hospital Yokohama Japan.
Hiroyuki BandoDepartment of Gastroenterological Surgery Ishikawa Prefectural Central Hospital Kanazawa Japan.
Masayoshi YasuiDepartment of Gastroenterological Surgery Osaka International Cancer Institute Osaka Japan.
Masataka IkedaDivision of Lower Gastrointestinal Surgery, Department of Gastroenterological Surgery Hyogo College of Medicine Nishinomiya Japan.ORCID https://orcid.org/0000-0001-9602-6659
Kentaro NakajimaDepartment of Surgery NTT Medical Center Tokyo Japan.
Dai ShidaDivision of Frontier Surgery The Institute of Medical Science The University of Tokyo Tokyo Japan.
Yukihide KanemitsuDepartment of Colorectal Surgery National Cancer Center Hospital Tokyo Japan.
Seigo KitanoOita University Oita Japan.
Colorectal Cancer Study Group of Japan Clinical Oncology Group
Oita University · JPJapan Clinical Cancer Research Organization · JPEhime University · JPHyogo Medical University · JPIshikawa Prefectural Central Hospital · JPNagano Municipal Hospital · JPNational Cancer Center Hospital East · JPNTT Medical Center · JPOsaka International Cancer Institute · JPShioda General Hospital · JPThe University of Tokyo · JPTokai University · JPTokyo Medical and Dental University · JPTokyo National Hospital · JPYokohama City Seibu Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreviously, we conducted a randomized controlled trial (JCOG0404) for stage II/III colon cancer patients and reported that the long-term survival after open surgery (OP) and laparoscopic surgery (LAP) were almost identical; however, JCOG0404 suggested that survival of patients after LAP with tumors located in the rectosigmoid colon, cT4 or cN2 tumors, and high body mass index (BMI) might be unfavorable.

aimTo identify the patient subgroups associated with poor long-term survival in the LAP arm compared with the OP arm.

methodsPatients aged 20-75, clinical T3 or deeper lesion without involvement of other organs, clinical N0-2 and M0 were included. The patients with pathological stage IV and R2 resection were excluded from the current analysis. In each subgroup, the hazard ratio for LAP (vs. OP) in overall survival (OS) from surgery was estimated using a multivariable Cox regression model adjusted for the clinical and pathological factors.

resultsIn total, 1025 patients (OP, 511 and LAP, 514) were included in the current analysis. Adjusted hazards ratios for OS of patients with high BMI (>25 kg/m

conclusionsAlthough LAP is an acceptable optional treatment for stage II/III colon cancer, the present subgroup analysis suggests that high BMI (>25 kg/m

Indexed as

colon cancerlaparoscopic surgerylong‐term outcomerandomized controlled trialsubgroup analysis

Identifiers

PMID34755012
PMCPMC8560616
OpenAlexW3191998706

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LicenceCC BY-NC-ND
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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.