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  • [PLoS One.] Importance of lymph node ratio in HPV-related oropharyngeal cancer patients treated with surgery and adjuvant treatment

    가톨릭의대 / 최규혜, 김연실*

  • 출처
    PLoS One.
  • 등재일
    2022 Aug 12
  • 저널이슈번호
    17(8):e0273059. doi: 10.1371/journal.pone.0273059. eCollection 2022.
  • 내용

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    Abstract
    Objectives: The pathologic nodal stage of human papillomavirus (HPV)-related oropharyngeal cancer (OPC) patients is classified according to the number of lymph nodes (LNs), as revised in 2018. Previous studies showed that the LN ratio (LNR) could be also a significant prognostic factor in head and neck cancer, but there are few studies on the LNR in HPV-related [HPV(+)] OPC. The aim of the present study was to analyze the predictive value of the LNR for survival and recurrence in HPV(+) OPC patients.

    Materials and methods: HPV(+) OPC patients treated with surgery with or without postoperative radiotherapy from January 2000 to March 2019 were evaluated. The patients were divided into two sets of three groups, according to LN numbers based on pathologic nodal stages, and LNRs by a cutoff value of 0.05. The medical records were reviewed, and the overall survival (OS), disease-free survival, locoregional recurrence, and distant metastasis incidence were analyzed.

    Results: Ninty patients were included and the median follow-up period was 38.2 months. There were no significant differences in OS in the LN number groups. However, there was a significant difference in OS in the LNR groups (P = 0.010). The incidence of distant metastasis in the LNR groups was significantly different (P = 0.005).

    Conclusion: The LNR in HPV(+) OPC patients may be a more useful tool to predict survival and distant metastasis than the LN number. Additional research and consensus on surgical pathology are needed before applying the LNR to adjuvant treatment decisions and pathologic nodal staging.

     

     

    Affiliations

    Kyu Hye Choi  1 , Jin Ho Song  1 , Ji Hyun Hong  1 , Youn Soo Lee  2 , Jin Hyoung Kang  3 , Dong-Il Sun  4 , Min-Sik Kim  4 , Yeon-Sil Kim  1
    1 Department of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
    2 Department of Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
    3 Department of Medical Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
    4 Department of Otolaryngology-Head and Neck Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

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