Evidence map›Paper›PMID 32514766›Full record

ArticleLangenbeck's archives of surgery2020

Distribution of lymph node metastases in locally advanced adenocarcinomas of the esophagogastric junction (cT2-4): comparison between Siewert type I and selected Siewert type II tumors.

Akio Sakaki, Jun Kanamori, Koshiro Ishiyama, Daisuke Kurita, Junya Oguma, Hiroyuki Daiko

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Langenbeck's archives of surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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 1 institution in 1 country.

Akio SakakiDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan.
Jun KanamoriDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan.
Koshiro IshiyamaDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan.
Daisuke KuritaDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan.
Junya OgumaDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan.
Hiroyuki DaikoDepartment of Esophageal Surgery, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku Tokyo, 104-0045, Japan. hdaiko@ncc.go.jp.
National Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe distribution of lymph node metastases in locally advanced Siewert type I and type II AEG (adenocarcinoma of the esophagogastric junction) remains unclear. The diversity of data in the literature reflects the non-uniformity of tumor stages and surgical procedures in previous studies. MATERIALS AND

methodsBased on a retrospective analysis from our single-center database, we examined distributions of lymph node metastases in types I and II cT2-4 AEG. The dataset comprised 44 patients; 19 and 25 patients had type I and type II, respectively. All patients underwent subtotal esophagectomy and total mediastinal lymphadenectomy, which included dissection of the upper mediastinal lymph nodes. The histological data of the surgical specimens were analyzed to evaluate metastasis rates in each lymph node station according to the Japanese Esophageal Society (JES) and American Joint Committee on Cancer (AJCC) guidelines.

resultsLymph node metastases were observed in 75.0% cases (n = 33/44). There was no significant difference in the total lymph node metastasis rate between the two groups (type I 73.7% versus type II 76.0%). On comparing each lymph node region separately, no statistically significant differences were noted between the groups: upper mediastinal (type I 31.6% versus type II 24.0%), middle and lower mediastinal (type I 31.6% versus type II 44.0%), paragastric (type I 61.1% versus type II 76.0%), and celiac lymph nodes (type I 16.7% versus type II 25.0%).

conclusionIn advanced clinical stages, the metastasis rate is high at all mediastinal lymph node regions in both type I and type II AEGs.

Indexed as

EsophagectomyAdenocarcinomaAdultAgedEsophageal NeoplasmsEsophagogastric JunctionFemaleHumansLymphatic MetastasisLymph Node ExcisionMaleMiddle AgedNeoplasm StagingRetrospective StudiesAdenocarcinoma of esophagogastric junctionAEGLymph node mappingLymph node metastasis

Identifiers

PMID32514766
OpenAlexW3032897796

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.