Nam Eui-Cheol
Department of Otolaryngology, Kangwon National University College of Medicine, Chunchon, Korea.
J Laryngol Otol. 2005 May;119(5):352-5. doi: 10.1258/0022215053945796.
Although the definitions of subjective tinnitus and auditory hallucination are very similar, the origins and underlying causes of each symptom clearly differ. This study examined whether the differentiation of tinnitus from auditory hallucination is necessary for the proper management of these symptoms in schizophrenic patients. We investigated the characteristics of auditory hallucinations in 15 schizophrenic patients, and measured their pure-tone hearing levels and auditory brainstem responses (ABR). The average hearing level was 20.6 +/- 16.2 dB, with a mild decrease at high frequencies. We classified the patients into three groups: pure hallucination, tinnitus, and hallucination plus tinnitus. Eight patients (53.3 per cent) complained of pure hallucination and only one of them had a mild hearing loss. Hearing deficits were observed in six of seven tinnitus patients. Abnormal findings of ABR were found only in the pure hallucination group. The results suggest that tinnitus should be differentiated from auditory hallucination in the evaluation of schizophrenic patients.
虽然主观性耳鸣和幻听的定义非常相似，但每种症状的起源和潜在原因明显不同。本研究探讨了在精神分裂症患者中，区分耳鸣和幻听对于正确处理这些症状是否必要。我们调查了15例精神分裂症患者的幻听特征，并测量了他们的纯音听力水平和听觉脑干反应（ABR）。平均听力水平为20.6 +/- 16.2分贝，高频有轻度下降。我们将患者分为三组：单纯幻听组、耳鸣组和幻听加耳鸣组。8例患者（53.3%）主诉单纯幻听，其中只有1例有轻度听力损失。7例耳鸣患者中有6例存在听力缺陷。ABR异常仅在单纯幻听组中发现。结果表明，在评估精神分裂症患者时，应将耳鸣与幻听区分开来。
