The impact of virus in N3 node dissection for head and neck cancer

Gian Luca Armas1, Chih-Ying Su, Chao-Cheng Huang

  • 1Department of Otolaryngology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Niao Sung Hsiang, Kaohsiung County, 833, Taiwan.

Insights

Surgery for head and neck cancer with N3 lymph node metastasis shows improved survival for patients with human papillomavirus (HPV) or Epstein-Barr virus (EBV) positive tumors. These viral infections impact surgical outcomes in head and neck cancer patients.

Area of Science:

  • Oncology
  • Virology
  • Surgical Oncology

Background:

  • Head and neck cancers with N3 lymph node metastasis present significant treatment challenges.
  • The role of viral infections, specifically human papillomavirus (HPV) and Epstein-Barr virus (EBV), in surgical outcomes for these patients requires further elucidation.

Purpose of the Study:

  • To investigate the impact of HPV and EBV presence on surgical outcomes in patients with operable N3 lymph node metastasis head and neck cancer.
  • To analyze survival rates based on primary tumor site and viral DNA detection.

Main Methods:

  • Retrospective analysis of 32 patients with operable N3 neck metastasis undergoing surgery (1987-2006).
  • Detection of HPV and EBV DNA in tumor cell nuclei.
  • Survival analysis incorporating viral status and primary tumor site.

Main Results:

  • Overall five-year survival rate was 40.7%; regional control rate was 55.8%.
  • Patients with unknown primary sites had significantly better survival (72.9%) compared to known primary sites (31.3%).
  • HPV or EBV positive tumors correlated with significantly higher five-year survival rates (77.8%) versus negative tumors (27.4%).

Conclusions:

  • Surgery combined with adjuvant therapy provides viable outcomes for operable N3 head and neck cancer.
  • The presence of HPV or EBV in tumors is associated with improved survival in this patient cohort.

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