Tange R A, de Bruijn A J, Grolman W
Department of Otorhinolaryngology, Academic Medical Center, University of Amsterdam, The Netherlands.
Auris Nasus Larynx. 1998 Sep;25(3):249-53. doi: 10.1016/s0385-8146(98)00008-x.
This study reports the evaluation of the hearing results after 62 implantations of a pure gold (99.9%) piston in cases of otosclerosis. A retrospective analysis of the pre- and postsurgery audiological results of these patients was carried out by microcomputer. This study shows that the use of a pure gold piston ((K-piston) with a diameter of 0.4 mm gives good results in cases of stapedotomy for otosclerosis. The hearing results show a closure of the pure-tone average (PTA) air-bone gap to within 10 dB was 70.9% (44/62) and to within 20 dB in 95.1% (59/62). A residual airbone-gap of > 20 dB was seen in three cases (4.8%). A postoperative overclosure of bone conduction thresholds was discovered for all frequencies measured. Sensorineural hearing loss (> 10%) did not occur and there was no decline in the speech discrimination. The future for this new generation of stapes pistons seems to be promising.
本研究报告了在62例耳硬化症患者中植入纯金（99.9%）活塞后的听力结果评估情况。通过微机对这些患者手术前后的听力学结果进行了回顾性分析。本研究表明，使用直径为0.4毫米的纯金活塞（K活塞）在耳硬化症镫骨切除术病例中取得了良好效果。听力结果显示，纯音平均气骨导差缩小至10分贝以内的比例为70.9%（44/62），缩小至20分贝以内的比例为95.1%（59/62）。有3例（4.8%）出现了大于20分贝的残余气骨导差。在所有测量频率中均发现术后骨导阈值有过度闭合情况。未发生感音神经性听力损失（>10%），言语辨别率也未下降。新一代镫骨活塞的前景似乎很乐观。
