Smith C G, Paradise J L, Young T I
Pediatrics. 1982 Mar;69(3):351-4.
Tympanograms with peaks located in the high-positive air pressure range (greater than or equal to 50 mm H2O) are infrequently recorded in clinical practice and have been little discussed in the literature. Such tympanograms accounted for 1.2% of a series of 8,011 tympanograms recorded at various times from 1,556 subjects ranging in age from 7 months through 12 years. Correlations between otoscopic diagnoses and tympanometric findings in the case of 65 of the high-positive air pressure tympanograms form the basis of the present report. Of the 65 high-positive air pressure tympanograms, 51 showed relatively high compliance (less than or equal to 5.5 Madsen units), and of these 46 (90%) were associated with ears considered normal otoscopically. Fourteen of the high-positive air pressure tympanograms showed low compliance (greater than 5.5 Madsen units), and of these, six (43%) were associated with ears considered normal, six (43%) with ears showing signs of acute infection, and two (14%) with ears in which the presence of effusion seemed probable. A previously presented zonal schema for classifying tympanograms has been modified on the basis of these findings.
在临床实践中，峰值位于高正气压范围（大于或等于50毫米水柱）的鼓室导抗图很少记录到，且在文献中也很少被讨论。在一系列8011份鼓室导抗图中，这类鼓室导抗图占1.2%，这些导抗图是在1556名年龄从7个月到12岁的受试者的不同时间记录的。本报告基于65份高正气压鼓室导抗图的耳镜诊断与鼓室声导抗测量结果之间的相关性。在65份高正气压鼓室导抗图中，51份显示出相对较高的顺应性（小于或等于5.5马德森单位），其中46份（90%）与耳镜检查认为正常的耳朵相关。14份高正气压鼓室导抗图显示出低顺应性（大于5.5马德森单位），其中6份（43%）与耳镜检查认为正常的耳朵相关，6份（43%）与有急性感染迹象的耳朵相关，2份（14%）与可能有积液的耳朵相关。基于这些发现，之前提出的用于鼓室导抗图分类的分区模式已被修改。
