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该文作者对３４例鼻咽癌（ＮＰＣ）病人放疗前后的咽鼓管功能进行研究，分别测试放疗前和放疗后６月、５年、１０年的咽鼓管功能。放疗前咽鼓管功能障碍的原因为咽鼓管功能性损害。所有病人在２月内接受７０～８０Ｇｙ的放疗剂量，６月后咽鼓管功能检测均存在功能性和器质性的
The authors studied the eustachian tube function of 34 patients with nasopharyngeal carcinoma (NPC) before and after radiotherapy, and tested the eustachian tube function before radiotherapy and 6 months, 5 years and 10 years after radiotherapy. Eustachian tube dysfunction before radiotherapy for Eustachian tube dysfunction. All patients received 70 ~ 80Gy of radiotherapy dose in February. Eustachian tube function test both in June had functional and organic