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目的：观察鼻腔生理盐水冲洗对放射性鼻窦炎干预情况。方法将110例鼻咽癌需行放疗的患者随机分为两组，实验组55例，用生理盐水冲洗鼻腔，2次/d，放疗前1w、放疗后12个月以上。对照组55例未行鼻腔冲洗。结果实验组鼻窦炎发病率(50.91%)，低于对照组(87.27%),=17.028,<0.05。结论鼻咽癌放疗前、后进行鼻腔生理盐水冲洗可明显降低放射性鼻窦炎的发病率。“,”Objective To observe the nasal saline ir igation for radioactive sinusitis intervention. Methods 110 cases of nasopharyngeal carcinoma radiotherapy patients randomly divided into two groups, the treatment group 55 cases, wash with physiological saline nasal cavity, 2 times a day, 1 week before radiotherapy, more than 12 months after radiotherapy, the control group 45 cases no nasal ir igation. Results The experimental group sinusitis incidence (50.91%), lower than the control group (87.27%), chi-square = 17.028, < 0.05. Conclusion Before and after radiotherapy for nasopharyngeal carcinoma (NPC) nasal saline ir igation can obviously reduce the incidence of radioactive sinusitis.