Palva T, Virtanen H
Arch Otolaryngol. 1984 Sep;110(9):596-9. doi: 10.1001/archotol.1984.00800350038010.
Aeration of the tympanic cavity was studied after 81 operations were performed on ears with cholesteatoma, in which sonometry was used preoperatively to measure the eustachian tube (ET) function. Twenty-nine of the 44 ears in which all or part of the tympanic mucosa could be preserved had positive sonometric test results, and 25 ears (86%) retained satisfactory aeration. Eight (53%) of the 15 ears with negative test results showed good postoperative aeration while adhesive changes developed in seven ears (47%). In 37 ears after the removal of all tympanic mucosa, aeration was satisfactory in eight (55%) of the 15 ears with positive sonometric test results, whereas only three (14%) of the 22 ears with negative test results developed an aerated tympanum. A positive sonometric test result can be regarded as a fair prognostic indicator of normal ET function. In extensive tympanic disease, there is a clear correlation (86%) between a negative test result and postoperative adhesion.
对81例胆脂瘤型中耳炎患者术后鼓室通气情况进行了研究，术前采用声导抗测试法测量咽鼓管（ET）功能。44例术中保留了全部或部分鼓室黏膜的患者中，29例声导抗测试结果为阳性，其中25例（86%）鼓室通气良好。15例声导抗测试结果为阴性的患者中，8例（53%）术后鼓室通气良好，7例（47%）出现粘连改变。37例术中切除全部鼓室黏膜的患者中，15例声导抗测试结果为阳性的患者中有8例（55%）鼓室通气良好，而22例声导抗测试结果为阴性的患者中只有3例（14%）鼓室出现通气。声导抗测试结果阳性可被视为咽鼓管功能正常的良好预后指标。在广泛的鼓室疾病中，测试结果为阴性与术后粘连之间存在明显的相关性（86%）。
