宁夏回汉青年鼓室导抗图正常值比较分析

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1、宁夏回汉青年鼓室导抗图正常值比较分析【摘要】　　目的探讨宁夏回汉青年鼓室导抗图各个测试项目正常值范围及回汉之间的鼓导抗图的差异。方法选取纯音听阈正常、无耳科疾病的正常青年人回族51例、汉族55例，在隔声室中,美国Grason-stadler中耳分析仪、226Hz探测音测试鼓室导抗图。结果所有鼓室导抗图均符合Jerger分类法中的“A”型曲线。宁夏回族青年和汉族青年的等效外耳道容积90%正常参考值范围分别为0.75～1.75mL和0.8～1.65mL；声顺值的90%正常参考值范围分别为0.31～1.48mL和0.3～1.30mL；峰压值的90%正常参考值范围分别为-27～45daPa和-30～

2、45daPa；坡度的90%正常参考值范围分别为33～120daPa和40～120daPa；回族组和汉族组间的等效外耳道容积差异具有统计学意义(P＜0.05),声顺值，峰压值和坡度差异无统计学意义(P＞0.05)。结论回族组与汉族组间的鼓室导抗图中等效外耳道容积差异存在统计学意义,应分别采用各自正常参考值标准。【关键词】鼓室导抗图;等效外耳道容积;声顺值;峰压值;坡度　　Abstract:ObjectiveToinvestigatetherangeofnormalvaluesoftympanogramamongHuiandHanyoungstersinNingxiaandtheirdiffer

3、encesbetweentheHuiethnicgroupandHanethnicgroup.Methods51Huiyoungstersand55Hanyoungsterswith10normalhearingthresholdandnoeardiseaseswereincludedinthisstudy.ThetympanogramsweredeterminedinsoundisolationroombyGrason-stadlerMiddleEarAnalyzerwithaprobesoundat226Hz.ResultsTympanogramsdeterminedinthiswaya

4、llshowedAtype.accordingtothestandardofJergercategorizingsystem.，weobtainedthenormalrangeofeachTympanogramtestatthesametime.The90percentageofnormalreferencerangeofHuiyoungstersandHanyoungstersforequivalentcanalvolumewere0.75～1.75mLand0.8～1.65mLrespectively.90percentageofthenormalreferencerangeoffort

5、heAcousticcompliancevaluewere0.3～1.48mLand0.3～1.30mLrepectively.90percentageofthenormalreferencerangeforPeaksoundpressurewere-27～45daPaand-30～45daParespectively90percentofthenormalreferencerangeforGradientwere33～120dapaand40～120daparespectively.Therewerestatisticdifferencesinthevaluesofequivalentca

6、nalvolume(P<0.05)butnodifferencesinthatofpeaksoundpressure,acousticcomplianceandgradient(P>0.05)asdeterminedfromthetympanograms.betweenHuiethnicgroupandHanethnicgroup.ConclusionAsthedifferencesinthevaluesofequivalentcanalvolumeBetweenHuiandHannationality,Weshouldestablishtheirownnormalreferen

7、cestandards,ratherthanblindlyrefertoforeignstandards.Due10tothedifferencesofnormalstandardsbetweenHansandHuis,thereferencestandardisverynecessary.　　Keywords：tympanogram;equivalentcanalvolume;acousticcomplia