Evidence map›Paper›PMID 35532861›Full record

SynthesisHepatology international2022

Benefit of adjuvant radiotherapy for gallbladder cancer: a comparability-based meta-analysis.

Seo Hee Choi, Chai Hong Rim, In-Soo Shin, Won Sup Yoon, Woong Sub Koom, Jinsil Seong

Open access · greenAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Hepatology international, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Review
  4. Article
  5. Role of Radiation Therapy for Biliary Tract Cancers.Current oncology (Toronto, Ont.) · 2025
    Review
  6. 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

6 authors at 3 institutions in 1 country.

Seo Hee ChoiDepartment of Radiation Oncology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Korea.
Chai Hong RimDepartment of Radiation Oncology, Korea University Ansan Hospital, Korea University Medical College, 123 Jeokgeum-ro, Danwon-gu, Ansan, Gyeonggi-do, 15355, Republic of Korea. crusion3@naver.com.ORCID http://orcid.org/0000-0001-7431-4588
In-Soo ShinGraduate School of Education, AI Convergence Education, Dongguk University, Seoul, Korea.
Won Sup YoonDepartment of Radiation Oncology, Korea University Ansan Hospital, Korea University Medical College, 123 Jeokgeum-ro, Danwon-gu, Ansan, Gyeonggi-do, 15355, Republic of Korea.
Woong Sub KoomDepartment of Radiation Oncology, Yonsei Cancer Center, Yonsei University Medical College, Seoul, Korea.
Jinsil SeongDepartment of Radiation Oncology, Yonsei Cancer Center, Yonsei University Medical College, Seoul, Korea.
Yonsei University · KRKorea University Medical Center · KRDongguk University · KR

Funding

National research fund of Korea NRF-2019M2D2A1A01031560
6 · The paper itself

Abstract

background and purposeThe benefits of adjuvant radiotherapy (ART) in gallbladder cancer (GBC) treatment remain inconclusive owing to the rarity of GBC and lack of randomized studies.

methodsPubMed, Medline, Embase, and Cochrane Library were systematically searched until March 2021. The primary endpoint was overall survival (OS). Comparative clinical studies that reported survival outcomes in GBC patients treated with or without ART were included. The comparability of each study was assessed by considering all possible clinical indicators (group 2: ART arm with poor clinical profile; group 1: ART arm with statistically similar profile or no evidence of having inferior clinical factors compared to non-ART arm).

resultsTwenty-one studies involving 6876 GBC patients were reviewed. In pooled analyses of OS, the odds ratio (OR) was 1.26 (p = 0.111) neither favoring ART or non-ART arms. In subgroup analyses considering comparability, the OR significantly favored the ART arm (1.92, p = 0.008) among comparability group 1 studies, whereas it was 1.03 (p = 0.865) in comparability group 2 studies. The pooled rate of 5-year OS in the ART vs. non-ART arms was 44.9% vs. 20.9% in group 1 and 34.1% vs. 40.0% in group 2. With ART, significant reduction in locoregional recurrence (OR 0.21, p = 0.001) but not in distant metastasis (OR 1.32, p = 0.332) was noted.

conclusionART not only showed benefits in patients with a similar clinical profile to those treated without ART but also yielded comparable survival in patients with an inferior clinical profile. Our results suggest the more active application of ART in GBC treatment. PROTOCOL REGISTRATION: This study is registered in PROSPERO (CRD42021240624, available at: https://www.crd.york.ac.uk/ ).

Indexed as

Gallbladder NeoplasmsHumansNeoplasm Recurrence, LocalRadiotherapy, AdjuvantAdjuvantGallbladder neoplasmRadiotherapySurvival

Identifiers

PMID35532861
OpenAlexW4229370877

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.