脑干听觉诱发电位和纯音电测听在甲状腺机能减退患者中的应用价值

Clinical applied value of brain stem auditory evoked potential and pure tone audiometry in patients with hypothyroidism

目的:探讨脑干听觉诱发电位(BAEP)、纯音电测听(PTA)在甲状腺机能减退症(甲减)中的应用价值。方法:选择200例甲减患者进行BAEP及PTA检测,并分别对治疗前后结果进行比较。结果:治疗后BAEPⅠ、Ⅲ、Ⅴ波的潜伏期(PL)及Ⅰ-Ⅲ、Ⅲ-Ⅴ、Ⅰ-Ⅴ的波间潜伏期(IPL)与治疗前相比明显缩短(P<0.01),其中Ⅰ、Ⅲ、Ⅴ波有一个以上波的PL缩短或治疗前波形消失者占72.5%;Ⅰ-Ⅲ、Ⅲ-Ⅴ、Ⅰ-Ⅴ中有一个以上的IPL缩短者占85%;Ⅴ波波幅增高并且Ⅴ/Ⅰ大于0.5或双侧Ⅴ波的潜伏期侧差(IDL)小于0.3ms、Ⅲ-ⅤIPL小于Ⅰ-ⅢIPL的占68.5%。PTA检测在治疗前后听阈检测方面无明显差异。结论:PTA检测有很大的主观性,不利于甲减患者治疗结果的观察随访,BAEP可客观的反映听觉系统和脑干功能状况,因此可以代替PTA检测,并可用于对甲减患者的治疗结果进行随访。

Objective:To explore the clinical applied value of brain stem auditoryk evoed potential(BAEP)and pure tone audiometry(PTA)in patients with hypothyroidism.Methods:Two hundred patients with hypothyroidism received BAEP and PTA examination;and the results before and after treatment were comparison.Results:In comparison between potential latencies(PL)before and after the treatment Waves Ⅰ,Ⅲ and Ⅴ,inter-peak latencies(IPL)of Ⅰ-Ⅲ,Ⅲ-Ⅴ,Ⅰ-Ⅴ on BAEP showing significantly shortened(P<0.01);including 72.5% of the ca...