第一耳镫骨切除术后听力良好,第二耳是否要手术,意见不一。Schuknecht(1971)认为双耳听力有利而须手术,Ludman与Grant(1973)等认为双耳镫骨切除术缺乏长期疗效的基础,而Smyth等(1975)发现术后前庭损伤可致残废。本文报告50例双耳耳硬化症均先后在2年左右间隔时间因患者要求作了第二耳镫骨切除术。其中男37,女13,年龄20～40岁者33例;两卵圆窗病变对称者20例,均采用特氟隆活塞(0.8mm)法。30例随访一年以上,有5例达五年。全部100耳以术后语音频率(0.5～2KHz)气骨导差距在15dB以内者为成功,计81耳,15dB以上者为失败,计19耳,其中有5耳为感音神经聋。属第二 The first otolaryngology good hearing, the second ear surgery, different views. Schuknecht (1971) considered both ears to be good and operated surgically, while Ludman and Grant (1973) concluded that the double-ear tarsalotomy lacked a long-term basis of efficacy, whereas Smyth et al. (1975) found that postoperative vestibular injuries can be disabling. This article reports 50 cases of binaural ear sclerosis were successively at about 2 years interval due to patient’s request for a second ear otomy. Among them, 37 were males and 13 females were females aged from 20 to 40 years. Twenty patients with symmetrical oval window lesions were treated with Teflon piston (0.8mm). 30 cases were followed up for more than a year, 5 cases up to five years. All 100 ears were successful in the postoperative speech frequency (0.5 ~ 2KHz) within 15dB, and 81 ears, 15dB or more were unsuccessful, accounting for 19 ears, of which 5 ears were sensorineural deafness. Is the second