Evidence map›Paper›PMID 31250569›Full record

ArticleCancer medicine2019

Increased lymph node yield indicates improved survival in locally advanced rectal cancer treated with neoadjuvant chemoradiotherapy.

Yaqi Wang, Menglong Zhou, Jianing Yang, Xiaoyang Sun, Wei Zou, Zhiyuan Zhang, Jing Zhang, Lijun Shen, Lifeng Yang, Zhen Zhang

Open access · goldAbstract read
In one paragraph

Article in Cancer medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. On the edge: pathology specimen quality in robotic and laparoscopic proctectomy, a propensity score-matched study.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2026
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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

10 authors at 1 institution in 1 country.

Yaqi WangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.ORCID 0000-0002-8003-6251
Menglong ZhouDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Jianing YangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Xiaoyang SunDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Wei ZouDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Zhiyuan ZhangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Jing ZhangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Lijun ShenDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Lifeng YangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Zhen ZhangDepartment of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, PR China.
Shanghai Medical College of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is recommended for colorectal cancer to harvest at least 12 lymph nodes (LNs) during surgery to avoid understaging of the disease. However, it is still controversial whether it is necessary to harvest from locally advanced rectal cancer (LARC) patients who underwent neoadjuvant chemoradiotherapy (neo-CRT). The impact of lymph node yield (LNY) on prognosis in LARC patients was analyzed. MATERIALS/

methodsIn total, 495 LARC patients who underwent neo-CRT in 2006-2015 were analyzed. After examining clinicopathological distribution differences between the LNY subgroups (with the threshold of 12), univariate and multivariate Cox survival analyses were performed. Survival plots were obtained from Kaplan-Meier analyses. Similar subgroup analyses were performed according to the tumor regression grade (TRG) and metastatic status of post-operational LNs.

resultsOf the 495 patients, 287 (57.98%) had an LNY of less than 12. Nearly no significant clinicopathological difference was found between the LNY subgroups, including the TRG scores. Multivariate survival analysis demonstrated that at least 12 LNs examined was an independent prognostic feature of good overall survival (OS), disease-free survival (DFS), and distant metastasis free survival (DMFS), but not local recurrence free survival (LRFS). However, in the subgroup analyses, no association was found between LNY and prognosis in patients with good TRG scores (0-1) or negative LNs.

conclusionsFor LARC patients treated with neo-CRT, an LNY of at least 12 indicated an improved survival. Decreased LNY was not related to better tumor regression. It suggests that a sufficiently high LNY is still required, especially in those with a potentially poor tumor response.

Indexed as

ChemoradiotherapyDisease-Free SurvivalFemaleHumansKaplan-Meier EstimateLymph Node ExcisionLymph NodesMaleNeoadjuvant TherapyPrognosisRectal NeoplasmsRetrospective StudiesTreatment Outcomelocally advanced rectal cancerlymph node yieldneoadjuvant chemoradiotherapyprognosistumor regression grade

Identifiers

PMID31250569
PMCPMC6712464
OpenAlexW2992074053

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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.