Prognostic Value of Lymph Node to Primary Tumor Standardized Uptake Value Ratio in Unresectable Esophageal Cancer

Overview

Journal BMC Cancer

Publisher Biomed Central

Specialty Oncology

Date 2020 Jun 12

PMID 32522275

Citations 5

Authors

Po-Jui Chen

Wing-Keen Yap

Yu-Chuan Chang

Chen-Kan Tseng

Yin-Kai Chao

Jason Chia-Hsun Hsieh

Ping-Ching Pai

Ching-Hsin Lee

Chan-Keng Yang

Albert Tsung-Ying Ho

Tsung-Min Hung

Affiliations

Soon will be listed here.

Abstract

Background: Unresectable esophageal cancer harbors high mortality despite chemoradiotherapy. Better patient selection for more personalized management may result in better treatment outcomes. We presume the ratio of maximum standardized uptake value (SUV) of metastatic lymph nodes to primary tumor (NTR) in 2-deoxy-2-[18F]fluoro-D-glucose positron emission tomography/computed tomography (FDG PET/CT) may provide prognostic information and further stratification of these patients.

Methods: The patients with non-metastatic and unresectable esophageal squamous cell carcinoma (SCC) receiving FDG PET/CT staging and treated by chemoradiotherapy were retrospectively reviewed. Receiver operating characteristic (ROC) analysis was performed to determine the optimal cut-off value for NTR. Kaplan-Meier method and Cox regression model were used for survival analyses and multivariable analyses, respectively.

Results: From 2010 to 2016, 96 eligible patients were analyzed. The median follow-up time was 10.2 months (range 1.6 to 83.6 months). Using ROC analysis, the best NTR cut-off value was 0.46 for prediction of distant metastasis. The median distant metastasis-free survival (DMFS) was significantly lower in the high-NTR group (9.5 vs. 22.2 months, p = 0.002) and median overall survival (OS) (9.5 vs. 11.6 months, p = 0.013) was also significantly worse. Multivariable analysis revealed that NTR was an independent prognostic factor for DMFS (hazard ratio [HR] 1.81, p = 0.023) and OS (HR 1.77, p = 0.014).

Conclusions: High pretreatment NTR predicts worse treatment outcomes and could be an easy-to-use and helpful prognostic factor to provide more personalized treatment for patients with non-metastatic and unresectable esophageal SCC.

Citing Articles

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