鼻咽癌放疗后鼻窦炎的临床观察

目的 了解鼻咽癌放疗后、后鼻窦炎的发病率，并探讨放疗后鼻窦炎的发生发展规律及相关因素。方法 通过观察173例鼻咽癌患者放疗前鼻咽部CT检查资料及其中73例放疗前、后鼻咽部CT检查资料，结合20例放疗后鼻窦炎患者的鼻内窥镜检查资料，对为的发病率及演变过程，进行统计学分析。结果 放疗前鼻窦炎的发病率为43．9％，放疗后鼻窦炎发病率为93．2％；放疗后鼻窦炎患者94．5％发生在8个月内，其中76．5％发生在4个月内；放疗后鼻窦炎患者58．8％在1年内有不同程度的好转，放疗结束后1年半鼻窦炎的发病率为89．0％。结论 鼻咽癌放疗后鼻窦炎发病率极高，虽然部分患者在鼻窦炎发病的过程中鼻窦炎症状有不同程度的好转，但极少能痊愈。放疗后鼻窦炎是1个连续而持久的过程，鼻窦口周围的引流障碍可能是其长期发病的主要原因。

The Clinical Observation for Sinusitis in Patients with Nasopharygeal Carcinoma After Radiotherapy

Objective To investigate the incidence of sinusitis in the patients with nasopharygeal carcinoma before and after radiotherapy,and study the orderliness in evolvement of sinusitis after radiotherapy.Methods The CT scanning of 173 patients with NPC before radiotherapy and of 73 patients,who had CT scanning regularly after radiotherapy in one and half year,was studed.the incidence of sinusitis,the clinical exhibition,the evolvement process of sinusitis was analyzed.Results The incidence of sinusitis in the patients of NPC before radiotherapy was 43.9%,after radiotherapy was 93.2%.The sinusitis was formed within 8 months in 94.5% patients,among them 76.5% were formed within 4 months.58.8% of sinusitis after radiotherapy would straighten up in different degrees in one year,but the incidence at one and half year after radiotherapy were 89.0% yet.Conclusion The incidence of sinusitis in patients with NPC after radiotherapy is very high.Although,some cases will straighten up in different degrees in the evolvement process,but only a few of them will recovery,the most appears a continuous and long process.Perisinuous obstruction may be the important reason of it.