Objective To explore the effect of preventing and treating the radiotherapy complication in the patients with NPC, who were used the inspiring the saline and washing the nasopharynx.

Conclusion: Hypoxic radiotherapy can alleviate the side-effect of the radiotherapy and reduce the rate of complication in the nasopharyngeal carcinoma patients.

Purpose To investigate late complications of patients with nasopharyngeal carcinoma treated by radical radiotherapy and analyze related effected factors.