Neck dissection field and lymph node density predict prognosis in patients with oral cavity cancer and pathological node metastases treated with adjuvant therapy
Neck dissection field and lymph node density predict prognosis in patients with oral cavity cancer and pathological node metastases treated with adjuvant therapy
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DOI:
10.1016/j.oraloncology.2011.10.017
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发表时间:
2012-04-01
期刊:
影响因子:
4.8
通讯作者:
Yen, Tzu-Chen
中科院分区:
文献类型:
--
作者:
Liao, Chun-Ta;Hsueh, Chuen;Yen, Tzu-Chen
Pathological lymph node metastases (pN+) are an established prognostic factor in oral cavity squamous cell carcinoma (OSCC). We retrospectively examined the prognostic significance of lymph node (LN) density in pN+ OSCC patients who underwent neck dissection (ND) and postoperative adjuvant therapy.We examined 309 pN+ patients who underwent levels I-III ND and 148 pN+ patients treated with levels I-V ND.The 5-year control and survival rates served as the main outcome measures. The 5-year rates for patients treated with levels I-III and I-V NDs were as follows: local control, 79%, 74% (p = 0.0630); neck control, 81%, 68% (p = 0.0014); distant metastasis, 21%, 36% (p = 0.0003); disease-free survival (DFS), 59%, 43% (p = 0.0001); disease-specific survival (DSS), 66%, 46% (p < 0.0001); and overall survival (OS), 49%, 37% (p = 0.0048), respectively. Multivariate analysis demonstrated that an LN density >= 0.16 was an independent prognostic factor for 5-year neck control (all data presented as p, hazard ratio [95% confidence interval]) (0.003, 2.691 [1.412-5.128]), distant metastases (0.001, 2.831 [1.520-5.270]), DFS (< 0.001, 2.464 [1.571-3.866]), and DSS (0.036, 1.781 [1.040-3.052]) in levels I-III ND patients. An LN density >= 0.048 was an independent predictor of 5-year local control (0.004, 4.871 [1.654-14.344]), neck control (0.002, 24.738 [3.367-181.771]), DFS (< 0.001, 4.151 [2.264-7.610]), DSS (< 0.001, 3.791 [2.017-7.125]), and OS (< 0.001, 2.806 [1.706-4.613]) in levels I-V ND patients.Our findings demonstrate the prognostic value of LN density for guiding treatment strategies in OSCC patients who are to receive adjuvant therapy. (C) 2011 Elsevier Ltd. All rights reserved.