Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis

Background: Esophageal squamous carcinoma (ESCC) is one of the most malignant cancers in the world due to nodal metastasis. Therefore, a reasonable nodal staging system is extremely important for further treatment strategies. Recently the positive lymph node ratio (PLNR) is an important prognostic f...

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Main Authors: Bin Hou, Jinyan Yuan, Shuge Kang, Yuanye Yang, Xing Huang, Hui Xu, Kai Guo, Wei Tian
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023098080
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author Bin Hou
Jinyan Yuan
Shuge Kang
Yuanye Yang
Xing Huang
Hui Xu
Kai Guo
Wei Tian
author_facet Bin Hou
Jinyan Yuan
Shuge Kang
Yuanye Yang
Xing Huang
Hui Xu
Kai Guo
Wei Tian
author_sort Bin Hou
collection DOAJ
description Background: Esophageal squamous carcinoma (ESCC) is one of the most malignant cancers in the world due to nodal metastasis. Therefore, a reasonable nodal staging system is extremely important for further treatment strategies. Recently the positive lymph node ratio (PLNR) is an important prognostic factor in various solid tumors Method: In this study, we investigated the clinical significance of the PLNR in stage II∼III ESCC patients. We collected the pathological characteristics of 272 stage II∼III ESCC patients from the SEER database from 2004–2016. ROC curves were used to calculate the best cutoff value of the PLNR; Pearson's Chi-square (χ2) and Fisher's exact probability tests were used to compare the clinical baseline and characteristics of patients. For continuous variables, Student's t-test and ANOVA were performed to evaluate statistical significance. Clinical outcomes were estimated by using the Kaplan‒Meier method and log-rank test. Furthermore, univariate and multivariate Cox regression models were utilized to analyze independent prognostic factors of ESCC patients. Results: Consequently, advanced ESCC patients were effectively stratified into two groups by prognosis using a PLNR cutoff value of 0.15 (P value = 0.04). The median survival time of patients with PLNR <0.15 (n = 145) was much higher than that of patients (n = 127) in the PLNR ≥0.15 group (20.0 vs. 13.0 months, P value < 0.0001). Notably, the PLNR significantly predicted the prognosis of ESCC patients with stage N1 (P value 0.01) and stage III (P value < 0.001) disease. The multivariate Cox proportional hazard model showed that T stage (HR 1.33, 95 % CI 0.97–1.82), tumor size >45 mm (HR 1.32, 95 % CI 1.02–1.70), N stage (HR 1.41, 95 % CI 0.98–2.01) and PLNR ≥0.15 (HR 1.35, 95 % CI 0.87–1.74) were independent risk factors for prognostic prediction in ESCC patients. Meanwhile, 117 II∼III ESCC patients from Shaanxi Provincial People's Hospital shown that the overall survival with a PLNR <0.15 (n = 96) was significantly longer than that with a PLNR ≥0.15 (n = 21) . Conclusions: The PLNR is useful for accurately predicting clinical outcomes and determining postoperative strategies.
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spelling doaj.art-d99049356b6349bd808c0a84687560342023-12-21T07:33:58ZengElsevierHeliyon2405-84402023-12-01912e22600Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysisBin Hou0Jinyan Yuan1Shuge Kang2Yuanye Yang3Xing Huang4Hui Xu5Kai Guo6Wei Tian7Department of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaDepartment of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaCorresponding author.; Department of Thoracic Surgery, Shaanxi Provincial People's Hospital, Youyi Road, Xi'an, Shaanxi, 710068, ChinaBackground: Esophageal squamous carcinoma (ESCC) is one of the most malignant cancers in the world due to nodal metastasis. Therefore, a reasonable nodal staging system is extremely important for further treatment strategies. Recently the positive lymph node ratio (PLNR) is an important prognostic factor in various solid tumors Method: In this study, we investigated the clinical significance of the PLNR in stage II∼III ESCC patients. We collected the pathological characteristics of 272 stage II∼III ESCC patients from the SEER database from 2004–2016. ROC curves were used to calculate the best cutoff value of the PLNR; Pearson's Chi-square (χ2) and Fisher's exact probability tests were used to compare the clinical baseline and characteristics of patients. For continuous variables, Student's t-test and ANOVA were performed to evaluate statistical significance. Clinical outcomes were estimated by using the Kaplan‒Meier method and log-rank test. Furthermore, univariate and multivariate Cox regression models were utilized to analyze independent prognostic factors of ESCC patients. Results: Consequently, advanced ESCC patients were effectively stratified into two groups by prognosis using a PLNR cutoff value of 0.15 (P value = 0.04). The median survival time of patients with PLNR <0.15 (n = 145) was much higher than that of patients (n = 127) in the PLNR ≥0.15 group (20.0 vs. 13.0 months, P value < 0.0001). Notably, the PLNR significantly predicted the prognosis of ESCC patients with stage N1 (P value 0.01) and stage III (P value < 0.001) disease. The multivariate Cox proportional hazard model showed that T stage (HR 1.33, 95 % CI 0.97–1.82), tumor size >45 mm (HR 1.32, 95 % CI 1.02–1.70), N stage (HR 1.41, 95 % CI 0.98–2.01) and PLNR ≥0.15 (HR 1.35, 95 % CI 0.87–1.74) were independent risk factors for prognostic prediction in ESCC patients. Meanwhile, 117 II∼III ESCC patients from Shaanxi Provincial People's Hospital shown that the overall survival with a PLNR <0.15 (n = 96) was significantly longer than that with a PLNR ≥0.15 (n = 21) . Conclusions: The PLNR is useful for accurately predicting clinical outcomes and determining postoperative strategies.http://www.sciencedirect.com/science/article/pii/S2405844023098080Positive lymph node ratioEsophageal squamous carcinomaSEER database
spellingShingle Bin Hou
Jinyan Yuan
Shuge Kang
Yuanye Yang
Xing Huang
Hui Xu
Kai Guo
Wei Tian
Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
Heliyon
Positive lymph node ratio
Esophageal squamous carcinoma
SEER database
title Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
title_full Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
title_fullStr Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
title_full_unstemmed Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
title_short Positive lymph node ratio is an important index to predict long-term survival for advanced esophageal squamous carcinoma patients (II∼III) with R0 resection--a SEER-based analysis
title_sort positive lymph node ratio is an important index to predict long term survival for advanced esophageal squamous carcinoma patients ii∼iii with r0 resection a seer based analysis
topic Positive lymph node ratio
Esophageal squamous carcinoma
SEER database
url http://www.sciencedirect.com/science/article/pii/S2405844023098080
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