Evidence map›Paper›PMID 29329569›Full record

ArticleBMC cancer2018

Effect of total number of harvested lymph nodes on survival outcomes after curative resection for gastric adenocarcinoma: findings from an eastern high-volume gastric cancer center.

Shiela S Macalindong, Kwang Hee Kim, Byung-Ho Nam, Keun Won Ryu, Norihito Kubo, Ja Yeon Kim, Bang Wool Eom, Hong Man Yoon, Myeong-Cherl Kook, Il Ju Choi and 1 more

Abstract read
In one paragraph

Article in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
–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

42 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  5. Observational
  6. R1 Resection in Gastric Cancer: Marker of Tumor Biology Rather Than Surgical Failure.Medical science monitor : international medical journal of experimental and clinical research · 2025
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  17. Subserosal Indocyanine Green Plus Submucosal Carbon Nanoparticle Navigated Laparoscopic Gastrectomy (DANCE-01): a Cohort Study.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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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

11 authors.

Shiela S MacalindongGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Kwang Hee KimBiometric Research Branch, National Cancer Center, Goyang, Republic of Korea.
Byung-Ho NamBiometric Research Branch, National Cancer Center, Goyang, Republic of Korea. byunghonam@ncc.re.kr.
Keun Won RyuGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea. docryu@ncc.re.kr.
Norihito KuboGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Ja Yeon KimGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Bang Wool EomGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Hong Man YoonGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Myeong-Cherl KookGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Il Ju ChoiGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.
Young Woo KimGastric Cancer Branch, Research Institute and Hospital, National Cancer Center, Goyang, Republic of Korea.

Funding

National Cancer Center NCC 1410140-2
6 · The paper itself

Abstract

backgroundGreater lymph node retrieval in gastric cancer improves staging accuracy and may improve survival from increased clearance of nodal micrometastasis. This retrospective cohort study investigated if more lymph nodes removed in gastric cancer increases survival and if such effect is stage-specific due to differential risks of nodal micrometastasis and systemic disease.

methodsThe prospectively collected database of curatively resected gastric cancer patients in National Cancer Center, South Korea between 2000 and 2009 was reviewed. Disease-free survival (DFS) and overall survival (OS) for all patients and for each stage according to number of lymph nodes examined (1-30, 31-45, > 45) were analyzed.

resultsOf 4049 patients, 96.6% and 98.4% underwent D2 (perigastric and extragastric) lymphadenectomy and had ≥ 15 lymph nodes examined. Mean number of nodes examined was 43. Five-year OS & DFS rates were 83.3% and 80.7%. Patients with > 45 nodes examined had significantly lower DFS (p = 0.002) and OS (p = 0.007) compared to those with 1-30 and 31-45 nodes. However, proportion of patients with > 45 nodes examined increased with stage (p = 0.0005). Per stage, there was no significant difference in DFS and OS according to number of nodes examined except for stage IIIA favoring more nodes (p = 0.018 and p = 0.044, respectively). Similar trend was seen in stage IIB. Number of examined nodes positively correlated with number of pathologic nodes for all patients (r = 0.144, p < .001) but not for stage IIB and IIIA. Number of nodes examined was a significant survival predictor in stage IIIA.

conclusionGreater lymph node harvest showed improved survival in intermediate-stage gastric cancer.

Indexed as

AdenocarcinomaAdultAgedDisease-Free SurvivalFemaleGastrectomyHumansKaplan-Meier EstimateLymphatic MetastasisLymph Node ExcisionLymph NodesMaleMiddle AgedNeoplasm MicrometastasisPrognosisRepublic of KoreaGastric cancerLymph node harvest/retrievalSurvival

Identifiers

PMID29329569
PMCPMC5766983

What OpenQuestion holds

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LicenceCC BY
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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.