Sakagami M, Ogasawara H, Node M, Seo T, Mishiro Y, Okumura S
Department of Otolaryngology, Hyogo College of Medicine.
Nihon Jibiinkoka Gakkai Kaiho. 1996 Jul;99(7):973-7. doi: 10.3950/jibiinkoka.99.973.
Tympanoplasty on only hearing ears was performed on 11 patients in Osaka University Hospital and Osaka Rosai Hospital during 1986 1994; this was 0.68% of all cases of middle ear surgery. The patients consisted of 5 with cholesteatoma, 5 with chronic otitis media and 1 with cholesterin granuloma. The mean age was 47.6 years (13-68 years) and the mean follow-up period was 2 years and 7 months (6 months-4 years). Postoperative hearing results was obtained in 9 patients (81.8%) according to the criteria of Otology Japan (1987), and all ears were dry at the final examination. Compared with the preoperative hearing level, postoperative hearing level showed improvement in 3 cases, not in 7 cases (within difference of 5 dB) and deterioration by 10-15 dB in 1 case. Although indications for surgery on only hearing ears are still controversial, we suggest the following: 1) patients with cholesteatoma should be operated on in the ordinary way; 2) patients with chronic otitis media should be operated on only by myringoplasty; 3) all patients must be operated on very carefully by skillful surgeons.
1986年至1994年间，大阪大学医院和大阪罗赛医院对11例单耳听力的患者实施了鼓室成形术；这占所有中耳手术病例的0.68%。患者包括5例胆脂瘤患者、5例慢性中耳炎患者和1例胆固醇肉芽肿患者。平均年龄为47.6岁（13 - 68岁），平均随访期为2年7个月（6个月 - 4年）。根据日本耳科学会（1987年）的标准，9例患者（81.8%）获得了术后听力结果，所有术耳在最后检查时均干燥。与术前听力水平相比，术后听力水平3例改善，7例无改善（差异在5dB以内），1例恶化10 - 15dB。尽管单耳听力患者的手术适应证仍存在争议，但我们建议如下：1）胆脂瘤患者应按常规方式进行手术；2）慢性中耳炎患者仅应行鼓膜成形术；3）所有患者必须由技术熟练的外科医生非常仔细地进行手术。
