Methods: The auditory brain stein 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。