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本文报道20例听力正常人和100例单侧感音神经性聋患者脑干听觉诱发电位的耳间v波潜期差(ILD)和I-V峰间期差(IPLD)。对比分析了在不同声级下,矫正与不矫正v波潜期和用不同方法矫正的结果。发现无论在等感觉级还是在最大峰等效声压级下做ILD和IPLD其结果无统计差异。做ILD时需要对患耳v波潜期矫正,做IPLD时则否。用SClter法和Arslan法矫正的差别只有百分之几毫秒。Selter法简单易行,临床实用。还发现2～4KHZ平均听阈在50dB HL以內者无须矫正v波潜期,大于90dB者则矫正不了。对ILD和IPLD等于零或负值的问题做了讨论,提出需要进一步寻找更灵敏的鉴别指征。当前应将脑干听觉诱发电位与耳蜗电图,眼震电图,蹬骨肌反射等相结合。
This paper reports the intra-aural v-wave potential difference (ILD) and I-V peak latency (IPLD) of brainstem auditory evoked potentials in 20 patients with normal hearing and 100 patients with unilateral sensorineural hearing loss. The results of correction and non-correction of v-wave potential and correction by different methods under different sound levels were compared and analyzed. It was found that there was no statistical difference between ILD and IPLD at equal sensory level or maximum peak equivalent sound pressure level. Do ILD need to correct the potential for ear v wave potential, when IPLD is not. The difference between the SClter and Arslan methods is only a few hundredths of a millisecond. Selter method is simple, clinical and practical. Also found 2 ~ 4KHZ average hearing threshold within 50dB HL no need to correct the potential of v wave, more than 90dB can not be corrected. Discussions were made on the issue of ILDs and IPLDs having zero or negative values, suggesting the need for further search for more sensitive indications. The brainstem auditory evoked potentials should be combined with the cochlear electrogram, oculography, pedal muscle reflex.