Oncotarget

Clinical Research Papers:

A large-scale retrospective study of the overall survival outcome in nasopharyngeal carcinoma with hypertension in Chinese population

Pei Yang, Hesham Elhalawani, Yingrui Shi, Ying Tang, Yaqian Han, Yu Zhao, Fan Lou and Hekun Jin _

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Oncotarget. 2017; 8:75577-75586. https://doi.org/10.18632/oncotarget.17483

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Abstract

Pei Yang1,2, Hesham Elhalawani2, Yingrui Shi1, Ying Tang3,1, Yaqian Han1, Yu Zhao1,2 , Fan Lou1 and Hekun Jin1

1 Department of Head and Neck Radiation Oncology, Hunan Cancer Hospital, Changsha, Hunan, China

2 Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA

3 Department of Chinese Traditional Medicine, The Jishou Chinese Traditional Medicine Hospital, Jishou, Hunan, China

Correspondence to:

Hekun Jin, email:

Keywords: VEGF, NPC, hypertension, radiation theropy, hypoxia

Received: March 06, 2017 Accepted: April 15, 2017 Published: April 27, 2017

Abstract

Background: It is known that hypertension is associated with high levels of vascular endothelial growth factor (VEGF) expression which is, in turn, highly connected to the prognosis of a wide array of cancers. The purpose of this study was to evaluate the relationship between hypertension and prognosis of nasopharyngeal carcinoma (NPC) with definitive radiotherapy in a Chinese population.

Patients and Methods: We retrospectively reviewed 4493 patients with NPC who received definitive radiotherapy from 1995 to 2006, with a minimum follow-up of 5 years. Kaplan-Meier survival analysis and Cox proportional hazard model were utilized to determine the association between hypertension and overall survival (OS).

Results: A total of 802 patients with NPC suffered from hypertension as compared to 3691 patients with no associated hypertension. Kaplan-Meier analysis revealed median overall survival of 101.1 and 110.0 months, respectively (p<0.05). In univariate survival analysis, patients with hypertension had worse OS (p<0.05) than non-hypertension patients. Patients with higher grade hypertension also had worse OS (p<0.05) compare to patients with grade 1 hypertension. In multivariate survival analysis, patients with hypertension had significantly worse OS (p<0.05) than non-hypertension patients, as well as M stage (p<0.001), after adjustment for related clinical confounding factors.

Conclusion: Our findings provide evidence that hypertension is an independent factor and result in poorer survival outcomes in patients with NPC, the mechanism is still unclear, and it worth further research.


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