to establish whether grommet insertion reduces the frequency of episodes of recurrent acute otitis media and the proportion of children with symptoms of ear disease.
为了解通气管的置入,能否降低儿童反复发作急性中耳炎的频率,及耳疾癥状的比率。
objective to discuss the advantages and curative effects of grommet insertion under endotoscope in treatment of children's secretory otitis media.