Evidence map›Paper›PMID 40557348›Full record

ArticleAnnals of surgery open : perspectives of surgical history, education, and clinical approaches2025

Impact of Dissected Lymph Node Count and Positive Lymph Node Ratio Following Esophagectomy on Long-Term Outcomes in Esophageal Cancer: A Systematic Review and Meta-Analysis.

Eisuke Booka, Hiroya Takeuchi, Yuki Sakai, Ryoma Haneda, Wataru Soneda, Tomohiro Murakami, Tomohiro Matsumoto, Yoshifumi Morita, Hirotoshi Kikuchi, Yoshihiro Hiramatsu and 1 more

Abstract read
In one paragraph

Article in Annals of surgery open : perspectives of surgical history, education, and clinical approaches, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Article
  2. 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

11 authors.

Eisuke BookaFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Hiroya TakeuchiFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Yuki SakaiFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Ryoma HanedaFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Wataru SonedaFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Tomohiro MurakamiFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Tomohiro MatsumotoFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Yoshifumi MoritaFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Hirotoshi KikuchiFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Yoshihiro HiramatsuFrom the Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan.
Mark K FergusonDepartment of Surgery, University of Chicago, Chicago, IL.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: This meta-analysis evaluated how the number of lymph nodes dissected (LND) and the positive lymph node ratio (LNR) following esophagectomy influence long-term outcomes in esophageal cancer. Background: Esophagectomy is a critical treatment for esophageal cancer, but the optimal extent of lymphadenectomy remains debated, especially in the era of modern neoadjuvant protocols. Methods: A systematic electronic search of Embase, Medline, and the Cochrane Library was performed for studies published between 2000 and 2024. Included studies assess overall survival (OS) in patients with esophageal cancer undergoing esophagectomy with lymphadenectomy, comparing groups with high and low LND and LNR. A subset analysis examined outcomes in patients receiving neoadjuvant therapy. Results: In total, 18 and 19 articles were included in the LND and LNR meta-analyses, respectively. High LND and low LNR were associated with improved OS [LND: hazard ratio (HR) = 0.75, 95% confidence interval (CI) = 0.67-0.85, Conclusions: These findings highlight the prognostic importance of high LND and low LNR in improving OS following esophagectomy, regardless of neoadjuvant therapy. Extensive lymphadenectomy may enhance survival, and LNR provides a valuable prognostic tool for guiding postoperative treatment decisions.

Indexed as

esophageal canceresophagectomylymphadenectomylymph node dissectionlymph node rationeoadjuvant therapyoverall survival

Identifiers

PMID40557348
PMCPMC12185081

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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.