European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology · 2024
Lymph node metastasis burden identifies head and neck squamous cell carcinoma patients benefiting from adjuvant chemoradiation: A propensity score-matching.
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Li Peng, Fang Qigen, Yuan Junhui, Luo Ruihua
Аннотация
INTRODUCTION: To examine the influence of adjuvant chemoradiation therapy (CRT) on survival, stratified by varying numbers and level involved of metastatic lymph nodes in patients with head and neck squamous cell carcinoma (HNSCC).
METHODS: Patients who underwent surgery for metastatic, negative margin HNSCC without extranodal extension were retrospectively enrolled and divided into two groups based on adjuvant therapy received: radiotherapy (RT) and CRT. The impact of RT versus CRT, stratified by the number of positive lymph nodes and the level involved, on Disease-Free Survival (DFS) and Overall Survival (OS) was analyzed.
RESULTS: Following propensity score matching, a total of 580 patients were included. The burden and level of lymph node metastasis were independent predictors of poorer survival. Among patients with no more than two positive lymph nodes or involvement of levels I-III, the addition of chemotherapy to RT did not demonstrate a significant improvement in prognosis. However, in patients with three or more positive lymph nodes, CRT showed improved DFS and OS compared to RT. In patients with involvement of levels IV-V, the addition of chemotherapy to RT resulted in a significant 24 % reduction in the risk of recurrence and a 20 % decrease in the risk of death.
CONCLUSION: Incorporation of adjuvant chemoradiation can lead to a favorable prognosis in patients with metastatic HNSCC. This impact was notable in cases where there were three or more positive lymph nodes or involvement of levels IV-V.
METHODS: Patients who underwent surgery for metastatic, negative margin HNSCC without extranodal extension were retrospectively enrolled and divided into two groups based on adjuvant therapy received: radiotherapy (RT) and CRT. The impact of RT versus CRT, stratified by the number of positive lymph nodes and the level involved, on Disease-Free Survival (DFS) and Overall Survival (OS) was analyzed.
RESULTS: Following propensity score matching, a total of 580 patients were included. The burden and level of lymph node metastasis were independent predictors of poorer survival. Among patients with no more than two positive lymph nodes or involvement of levels I-III, the addition of chemotherapy to RT did not demonstrate a significant improvement in prognosis. However, in patients with three or more positive lymph nodes, CRT showed improved DFS and OS compared to RT. In patients with involvement of levels IV-V, the addition of chemotherapy to RT resulted in a significant 24 % reduction in the risk of recurrence and a 20 % decrease in the risk of death.
CONCLUSION: Incorporation of adjuvant chemoradiation can lead to a favorable prognosis in patients with metastatic HNSCC. This impact was notable in cases where there were three or more positive lymph nodes or involvement of levels IV-V.