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：探讨治疗鼻咽癌放疗后后鼻孔闭锁的新方法。方法：采用鼻内窥镜下微波手术，对３例鼻咽癌放疗后后鼻孔膜性闭锁的患者进行治疗。结果：３例均获满意疗效，随访７～１３个月无复发。结论：该方法的优点是在局麻下进行；术中毋需切口，对正常组织损伤小；术中视野清晰、出血少，患者痛苦小；膜性闭锁凝固气化彻底，术后不需扩张，疗效稳定。
: To explore a new method for the treatment of nasal atresia after radiotherapy of nasopharyngeal carcinoma. Methods: Three patients with nasopharyngeal membranous atresia after radiotherapy of nasopharyngeal carcinoma underwent microwave endoscopic sinus surgery. Results: All the 3 patients were satisfied with the curative effect. No recurrence was observed after 7 to 13 months follow-up. Conclusion: The method has the advantage of under local anesthesia; no incision in the surgery, less damage to normal tissue; clear vision during surgery, less bleeding, patients with less pain; membranous atresia coagulation gasification thoroughly, without postoperative expansion , Efficacy and stability.