New surgical staging system for patients with recurrent nasopharyngeal carcinoma based on the AJCC/UICC rTNM classification system. Issue 13 (September 2015)

• Record Type: Journal Article
• Authors: You, Rui; Zou, Xiong; Wang, Shun-Lan; Jiang, Rou; Tang, Lin-Quan; Zhang, Wei-Dong; Li, Li; Zhang, Meng-Xia; Shen, Guo-Ping; Guo, Ling; Qian, Chao-Nan; Mai, Hai-Qiang; Ma, Jun; Hong, Ming-Huang; Chen, Ming-Yuan
• Is Part Of: European journal of cancer. Volume 51:Issue 13(2015:Sep.)
• Page Start: 1771
• Page End: 1779
• Publication Date: 2015-09
• Subjects: Cancer -- Periodicals; Neoplasms -- Periodicals; Cancer -- Périodiques; Cancer; Tumors; Electronic journals; Periodicals; Electronic journals; 616.994
• DOI: 10.1016/j.ejca.2015.05.014
• Languages: English
• ISSNs: 0959-8049

Abstract

<abstract xml:lang="en" abstract-type="author" id="ab005"> <title id="st005">Abstract</title> <sec> <title id="st010">Background</title> <p id="sp0005">Recurrent tumour, node and metastasis (rTNM) stage system does not have an outstanding prognostic value for survival outcome of patients with recurrent nasopharyngeal carcinoma (rNPC) and it cannot aid the clinicians to choose the most suitable treatment for these patients.</p> </sec> <sec> <title id="st015">Methods</title> <p id="sp0010">In total, 894 rNPC patients were consecutively enroled. All recurrent (r) tumour (T) stages (rT) and node (N) stages (rN) were stratified as resectable and unresectable based on the imaging data of the head and neck. These stages were re-subdivided into surgical T stages (sT) and surgical N stages (sN) with similar clinical characteristics and death risks and were re-integrated into a new 'surgical' stage using a Cox proportional hazards model.</p> </sec> <sec> <title id="st020">Results</title> <p id="sp0015">The 5-year overall survival (OS) was 72.0%, 55.1%, 21.1% and 10.1% in 'surgical' stages I, II, III and IV, respectively (<italic>P</italic> < 0.001). The 'surgical' stage was a significant independent prognostic factor for OS (hazard ratio [HR] 1.78, <italic>P</italic> < 0.001) and exhibited enhanced prognostic value compared with the rTNM staging system (area under receiver operating characteristics 0.68 versus 0.63, <italic>P</italic> < 0.001). Endoscopic nasopharyngectomy and intensity-modulated radiation therapy were significant independent positive prognostic factors for the OS of patients with primary lesions in 'surgical' stage I/II and 'surgical' stage III, respectively (<italic>P</italic> < 0.05). A combination of aggressive treatments for loco-regional lesions exhibited a beneficial trend for OS of patients with 'surgical' stage IV (<italic>P</italic> > 0.05).</p> </sec> <sec> <title id="st025">Conclusions</title> <p id="sp0020">Compared with the rTNM stage system, the 'surgical' staging system exhibited enhanced prognostic value for rNPC patient survival and could aid clinicians in choosing the most suitable treatment for rNPC patients.</p> </sec> </abstract>