Methods: In this study, laser myringotomy was performed with the CO_2 laser otoscope in a population comprising 20 patient (34 ears) with a history of otitis media with effusion (OME) associated with(without) adenoidal and sometimes tonsillar hyperplasia.

• 目的:研究观察CO_2激光鼓膜造孔治疗慢性分泌性中耳炎的方法、剂量及并发症。