Rahko T
Acta Otolaryngol. 1975 Jul-Aug;80(1-2):67-73. doi: 10.3109/00016487509121302.
The effect of adaptation of the ear on the SISI test was studied at 500 Hz and 2000 Hz in 43 patients with chronic otitis and in 20 patients with otosclerosis. The mean adaptation was slightly over 10 dB, except in the otosclerosis group at 2000 Hz, for which the value was nearly 20 dB after continuous stimulation at 20 dB SL for 3 min. The mean SISI values ranged from 15% to 31% in the preadaptation tests and from 9% to 31% in the postadaptation tests. The scatter of the pre-and postadaptation SISI scores was wide, making statistical treatment of the results difficult. In the total material 22% of the values at 2000 Hz were positive according to Jerger's classification, and 32% were questionable. Adaptation slightly reduced the proportion of positive values, but there were changes towards both higher and lower levels in the cases of chronic otitis, while all the otosclerosis changes were diminutions.
在43例慢性中耳炎患者和20例耳硬化症患者中，研究了在500赫兹和2000赫兹时耳朵适应性对短增量敏感指数（SISI）测试的影响。除了在2000赫兹的耳硬化症组中，在20分贝感觉级（dB SL）持续刺激3分钟后其值接近20分贝外，平均适应性略超过10分贝。预适应测试中，平均SISI值在15%至31%之间，后适应测试中在9%至31%之间。预适应和后适应SISI分数的离散度很大，使得对结果进行统计学处理变得困难。根据耶格分类法，在全部资料中，2000赫兹时22%的值为阳性，32%的值有疑问。适应性略微降低了阳性值的比例，但在慢性中耳炎病例中，数值有向更高和更低水平的变化，而所有耳硬化症病例中的变化都是降低。
