Methods: The auditory brain stem response(ABR) was examined in 33 patients(66 ears) with NPC before and at the first day,and on 3,6,12,24 and 36 months after radiotherapy.

• 方法:对鼻咽癌33例(66耳)患者于放疗前,放疗后第1天及第3、6、12、24、36个月分别行听性脑干反应(ABR)检测。