## Background and objectives: To establish appropriate therapeutic modalities for renal cell carcinoma (rcc), informations on the factors affecting prognosis of patients are essential. for this purpose, multivariate analysis including a large set of variables is necessary. ## Methods: Prognostic
Surgical salvage nasopharyngectomy for recurrent nasopharyngeal carcinoma: A multivariate analysis of prognostic factors
β Scribed by Alexander C. Vlantis; Hing Sang Chan; Michael C. F. Tong; Brian K. H. Yu; Michael K. M. Kam; C. Andrew van Hasselt
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 93 KB
- Volume
- 33
- Category
- Article
- ISSN
- 1043-3074
No coin nor oath required. For personal study only.
β¦ Synopsis
Background. The purpose of this study was to identify independent prognostic factors that influenced local relapse-free survival (LRFS) and overall survival (OS) of patients who underwent salvage surgery for residual or recurrent nasopharyngeal carcinoma (NPC).
Methods. Ninety-seven patients who had been treated with radiotherapy or chemoradiotherapy for NPC underwent a nasopharyngectomy for a residual or recurrent local tumor between November 1987 and June 2007. The subsequent minimum follow-up was 2 years. Univariate and multivariate analyses were performed to identify prognostic factors for LRFS and OS.
Results. The 5-year LRFS and OS was 46.7% and 51.9%, respectively. On multivariate analysis for LRFS and OS, respectively, recurrent regional disease (hazard ratio [HR], 3.245; p ΒΌ .008) and (HR, 4.990; p ΒΌ .001), and positive surgical margins (HR, 5.963; p ΒΌ .000), and (HR, 4.912; p ΒΌ .000) were independent prognostic factors.
Conclusion. In patients undergoing surgical salvage nasopharyngectomy for residual or recurrent NPC, positive surgical margins have an independent negative influence on LRFS and OS. V
π SIMILAR VOLUMES
## Abstract ## Background. The quantity of circulating cellβfree EpsteinβBarr virus (EBV) DNA in patients with nasopharyngeal carcinoma (NPC) managed by radiotherapy has prognostic relevance. We measured the copy number of EBV DNA in patients with early recurrent NPC before and after salvage nasop