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长期以来将儿童期镫骨切除术视为禁忌。其理由是:①儿童有发生中耳炎的危险;②如进行手术时病变仍处于活动期,有再固定的危险。③先天性镫骨固定的患者,行镫骨切除时感觉神经性聋的发生率较高。据英、美调查,近年来因耳硬化症而进行镫骨切除的病例又有明显下降,这可能促使外科医生去扩大手术适应症,其途经之一就是降低年龄的限制。本组病例系观察在爱丁堡进行的21岁以下的28名29耳镫骨切除术的效果。19耳是耳硬化症,10耳是由其它情况所致镫骨固定。非耳硬化症组中,5例术后听力有较大进步,但仅1例消除了气骨导间距,2例仍持续传导性聋,1例先天性镫骨固定者仍呈明显感音性聋,
Childhood periodontitis has long been considered taboo. The reasons are: â ’children have the risk of occurrence of otitis media; â’ ¡If the lesion is still active during surgery, there is the risk of re-fixed. ③ congenital tarsal fixation in patients with tarsal resection when the incidence of sensory nerve deafness higher. According to the survey of Britain and the United States, the number of stapes resected due to otosclerosis in recent years has dropped significantly, which may prompt surgeons to expand their indications for surgery. One of the reasons for this is to lower the age limit. This group of patients was observed in Edinburgh under the age of 21 under 28 29 ear otomy effect. 19 ears are otosclerosis, 10 ears are caused by other conditions stapes fixation. In non-otosclerosis group, 5 cases had great improvement in hearing after operation, but only 1 case eliminated the air-bridge distance, 2 cases continued to be conductive deafness and 1 case had congenital tarsal fixation deaf,