Objective: To investigate injury of the eustachian tube and middle ear by sinusitis in children and observe the recovery of the acoustic dysfunction after treatment for sinusitis.

• 摘要目的：探讨儿童鼻窦炎对咽鼓管与中耳传音功能的影响及程度，观察治疗鼻窦炎后，中耳传音功能障碍的恢复情况。