Evidence map›Paper›PMID 31533656›Full record

ArticleBMC cancer2019

Mapping patterns of metastatic lymph nodes for postoperative radiotherapy in thoracic esophageal squamous cell carcinoma: a recommendation for clinical target volume definition.

Jing Yu, Wen Ouyang, Chunyang Li, Jiuling Shen, Yu Xu, Junhong Zhang, Conghua Xie

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 16 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Jing YuDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071.
Wen OuyangDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071.
Chunyang LiDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071.
Jiuling ShenDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071.
Yu XuDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071.
Junhong ZhangDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071. zjhzhongnan@163.com.
Conghua XieDepartment of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China, 430071. chxie_65@whu.edu.cn.ORCID http://orcid.org/0000-0003-2836-6373
Wuhan University · CN

Funding

Zhongnan Hospital of Wuhan University, Science, Technology and Innovation Seed Fund znpy 2016050 and znpy 2017049
6 · The paper itself

Abstract

backgroundThe clinical target volume (CTV) for postoperative radiotherapy for thoracic esophageal squamous cell carcinoma (TESCC) needs to be defined. The study aim was to map metastatic lymph nodes (LNMs) in a computed tomography (CT)-based atlas and delineate the postoperative radiotherapy target area.

methodsSixty-nine TESCC patients with first recurrent regional LNMs after esophagectomy were included. The LNM epicenters were registered onto corresponding anatomic axial CT images of a standard patient in the treatment position, with reference to the surrounding vascular and bony structures. The LNM sites were based on lymph node map of esophageal cancer, AJCC 8th. The lymph metastasis risk for different segments of thoracic esophagus was assessed.

resultsOne hundred and seventy-nine LNMs were mapped onto standard axial CT images. The upper-middle mediastinum region (station 1 to 8 M) contained 97% of metastases in the upper segment of thoracic esophagus, 90% in the middle segment, and 66% in the lower one. Advanced pathological stage (≥IIIB) might be a predictive factor for upper abdominal region (UAR) relapse in lower TESCC. Lower cervical para-tracheal LNMs were within a 4.3-cm bilaterally expanded area from the midline of the body and a 2.2-cm expanded area from the anterior of vertebral body, from the superior border of the C7, to the inferior border of the first thoracic vertebra.

conclusionA modified target from the upper border of C7 to the lower border of caudal margin of the inferior pulmonary vein level could cover the high-risk area of TESCC underwent postoperative radiotherapy. UAR seems to be an elective irradiation target for lower TESCC at pathological IIIB stage and higher.

Indexed as

AdultAgedAged, 80 and overCombined Modality TherapyEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaFemaleHumansLymphatic MetastasisMaleMiddle AgedNeoplasm Recurrence, LocalTomography, X-Ray ComputedMapping patternsPostoperative radiotherapyRecurrent nodesThoracic esophageal squamous cell carcinoma

Identifiers

PMID31533656
PMCPMC6749673
OpenAlexW2973495001

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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.