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EXTRACAPSULAR SPREAD IN IPSILATERAL NECK METASTASIS:AN IMPORTANT PROGNOSTIC FACTOR IN LARYNGEAL CANCER

EXTRACAPSULAR SPREAD IN IPSILATERAL NECK METASTASIS:AN IMPORTANT PROGNOSTIC FACTOR IN LARYNGEAL CANCER
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摘要 Objective To evaluate the impact of extracapsular spread (ECS) in ipsilateral neck metastasis on prognosis and its related factors in laryngeal cancer. Methods The study included 184 patients who underwent laryngectomy and simultaneous radical or modified radical neck dissection between January 1994 and December 1997 for laryngeal cancer. All of them had a complete 5-year follow-up. We used transparent lymph node detection and continuous slicing method on all neck dissection specimens. Kaplan-Meier model was used for survival analysis and the log-rank test was used to assess significance. Reults We found pathological neck metastases in 80 patients. Among them, 26 cases (32. 5% ) had ECS in ipsilateral neck. ECS incidence increased with advanced pathological N (pN) stages (pNl 3.7%, pN2a 25.0%, pN2b 50. 0%, and pN2c 55.6% ; P =0. 001). ECS incidence also increased with number of positive nodes (1 positive node 8.6%, 2 positive nodes 33.3%, 3 and more positive nodes 66. 7% ; P 〈0. 001 ). Incidences of contralateral neck metastases and ipsilateral neck recurrence in patients with ECS were higher than those in patients without ECS (46.2% vs. 24. 1%, P=0.046; 34.6% vs. 7.4%, P =0.002). The 5-year survival rate of patients with ECS was significantly lower than that of patients without ECS (23.1% vs. 57.4%, P =0. 013). Conclution ECS is an important prognostic factor in laryngeal cancer. Patients with ECS have a higher incidence of contralateral neck metastasis, so bilateral neck dissection should be selected.
出处 《Chinese Medical Sciences Journal》 CAS CSCD 2006年第2期86-89,共4页 中国医学科学杂志(英文版)
关键词 laryngeal neoplasms lymphatic metastasis extracapsular spread PROGNOSIS 关节囊疾病 喉癌 颈部转移 治疗
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参考文献8

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