Retropharyngeal lymph node metastasis on N stage of nasopharyngeal carcinoma.

ABSTRACT:

Purposes

To evaluate retropharyngeal lymph node metastasis on N stage of nasopharyngeal carcinoma (NPC).

Methods

NPC patients were extracted from the Surveillance, Epidemiology, and End Results database between 2004 and 2016. Pathologically confirmed patients with complete data of retropharyngeal lymph node metastasis were investigated. The included patients were divided into N1a and N1b groups. Overall survival (OS) and cancer-specific survival (CSS) were assessed using the Kaplan-Meier method and propensity score matching (PSM) analyses.

Results

This retrospective cohort study examined 759 patients: 70 who were stage N1a and 689 who were stage N1b. Before PSM, N1a group was associated with similar 5-year OS (77.7% vs. 72.4%; P = 0.15) and CSS (85.6% vs. 79.9%; P = 0

SUBMITTER: Pan XB 

PROVIDER: S-EPMC8211178 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature