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目的 评价鼻咽癌咽旁受侵时不同射野放射治疗的近期疗效。方法 鼻咽癌咽旁受侵 5 5例 ,分为双耳前野和面颈联合野为主野的两个不同照射组 ,放疗后复查 1年。结果 放疗后半年内两组咽旁间隙肿物消退率无明显差异 ,而放疗后 1年显示面颈联合野组咽旁间隙肿物消退率明显高于耳前野组。结论 对咽旁间隙受侵的鼻咽癌病人 ,面颈联合野照射可提高鼻咽癌放疗的近期疗效。
Objective To evaluate the short-term effect of radiation therapy in nasopharyngeal carcinoma on pharyngeal paralysis. Methods Fifty-five cases of nasopharyngeal parapharyngeal invasion were divided into two different irradiation groups, the frontal and the frontal-neck joint fields of both ears. The patients were reviewed for 1 year after radiotherapy. Results Within six months after radiotherapy, there was no significant difference in the regression rate of parapharyngeal space between two groups. However, one year after radiotherapy, the regression rate of parapharyngeal space mass in the facial-cervical joint field group was significantly higher than that in the anterior group. Conclusions The nasopharyngeal carcinoma patients with invasion of parapharyngeal space can improve the short-term curative effect of radiotherapy for nasopharyngeal carcinoma.