Impact of lymph node ratio and number of lymph node metastases on survival and recurrence in laryngeal squamous cell carcinoma

Head Neck. 2023 Sep;45(9):2274-2293. doi: 10.1002/hed.27471. Epub 2023 Jul 27.

Abstract

Introduction: The aim of this study is to assess the impact of lymph node ratio (LNR) and number of positive lymph nodes (NPLN) on mortality and recurrence rates in patients with laryngeal squamous cell carcinoma.

Materials and methods: We conducted a retrospective multicenter international study involving 24 Otorhinolaryngology-Head and Neck Surgery divisions. Disease-specific survival (DSS) and disease-free survival (DFS) were evaluated as the main outcomes. The curves for DSS and DFS according to NPLN and LNR were analyzed to identify significant variations and establish specific cut-off values.

Results: 2507 patients met the inclusion criteria. DSS and DFS were significantly different in the groups of patients stratified according to LNR and NPLN. The 5-year DSS and DFS based on LNR and NPLN demonstrated an improved ability to stratify patients when compared to pN staging.

Conclusion: Our data demonstrate the potential prognostic value of NPLN and LNR in laryngeal squamous cell carcinoma.

Keywords: laryngeal cancer; lymph node; lymph node metastasis; lymph node ratio; oncology.

Publication types

  • Multicenter Study

MeSH terms

  • Head and Neck Neoplasms* / pathology
  • Humans
  • Lymph Node Excision
  • Lymph Node Ratio
  • Lymph Nodes* / pathology
  • Lymphatic Metastasis / pathology
  • Neoplasm Staging
  • Prognosis
  • Retrospective Studies
  • Squamous Cell Carcinoma of Head and Neck / pathology