Evidence map›Paper›PMID 33738720›Full record

ArticleAnnals of surgical oncology2021

Prognostic Role of Nodal Skip Metastasis in Thoracic Esophageal Squamous Cell Carcinoma: A Large-Scale Multicenter Study.

Qi-Xin Shang, Yu-Shang Yang, Li-Yan Xu, Hong Yang, Yin Li, Yi Li, Zhi-Yong Wu, Jian-Hua Fu, Xiao-Dong Yao, Xiu-E Xu and 4 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Annals of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 1 country.

Qi-Xin Shang *Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
Yu-Shang Yang *Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
Li-Yan XuDepartment of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Hong YangDepartment of Thoracic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China.
Yin LiDepartment of Thoracic Surgery, Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China.
Yi LiDepartment of Thoracic Surgery, Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China.
Zhi-Yong WuDepartment of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Jian-Hua FuDepartment of Thoracic Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China.
Xiao-Dong YaoDepartment of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Xiu-E XuDepartment of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Jian-Yi WuDepartment of Oncology Surgery, Shantou Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Zhi-Wei FanDepartment of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, China.
Yong YuanDepartment of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China. yongyuan@scu.edu.cn.
Long-Qi ChenDepartment of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China. drchenlq@scu.edu.cn.
Sun Yat-sen University · CNWest China Hospital of Sichuan University · CNChinese Academy of Medical Sciences & Peking Union Medical College · CNSichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNodal-skip metastasis (NSM) is found in esophageal squamous cell carcinoma (ESCC), but its prognostic role is controversial. This study aimed to investigate the prognostic value of NSM for thoracic ESCC patients.

methodsCategorization of NSM was according to the N groupings of Japan Esophagus Society (JES) staging system, which is dependent on tumor location. Using the Kaplan-Meier method and Cox-regression analysis, this study retrospectively analyzed the overall survival (OS) for 2325 ESCC patients after radical esophagectomy at three high-volume esophageal cancer centers. Predictive models also were constructed.

resultsThe overall NSM rate was 20% (229/1141): 37.4% in the in upper, 12.9% in the middle, and 22.2% in the lower thoracic ESCC. The patients with NSM always had a better prognosis than those without NSM. Furthermore, NSM was an independent prognostic factor for thoracic ESCC patients (hazard ratio [HR], 0.633; 95% confidence interval [CI], 0.499-0.803; P < 0.001). By integrating the prognostic values of NSM and N stage, the authors proposed the new N staging system. The categories defined by the new N staging system were more homogeneous in terms of OS than those defined by the current N system. Moreover, the new N system was shown to be an independent prognostic factor also for thoracic ESCC patients (HR, 1.607; 95% CI, 1.520-1.700; P < 0.001). Overall, the new N system had slightly better homogeneity, discriminatory ability, and monotonicity of gradient than the current N system.

conclusionsThis study emphasized the prognostic power of NSM and developed a modified node-staging system to improve the efficiency of the current International Union for Cancer Control (UICC)/American Joint Committee on Cancer (AJCC) N staging system.

Indexed as

Carcinoma, Squamous CellEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaHead and Neck NeoplasmsEsophagectomyHumansLymphatic MetastasisLymph NodesNeoplasm StagingPrognosisRetrospective StudiesSurvival Rate

Identifiers

PMID33738720
OpenAlexW3139001126

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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.