Subcortical deafness as a subtype of auditory agnosia after injury of bilateral auditory radiations caused by two cerebrovascular accidents - Normal auditory brainstem responses with I-Ⅶ waves and abolished consciousness of hearing -
Subcortical deafness as a subtype of auditory agnosia after injury of bilateral auditory radiations caused by two cerebrovascular accidents - Normal auditory brainstem responses with I-Ⅶ waves and abolished consciousness of hearing -
复制标题
两次脑血管事故导致双侧听觉辐射损伤后，皮层下耳聋是听觉失认症的一种亚型 - I-Ⅶ波的正常听觉脑干反应和听觉意识丧失 -
DOI：
10.1080/00016489.2020.1871510
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kaga K
中科院分区：
文献类型：
--
作者：
Akiyoshi R;Shindo M;Kaga K
在大脑半球损伤引起的中枢性听觉障碍中，有皮质性耳聋和听觉失认症。虽然皮质性耳聋的临床病例已被报道，但对与皮质性耳聋相关的听力问题和局部病变知之甚少。目的/目的我们研究的目的是阐明与皮质性耳聋相关的病变部位，并阐明为什么脑病变患者根本没有意识到任何声音。材料与方法3例听力完全丧失患者参加本研究。我们通过纯音听力学、语音听力学、畸变积耳声发射（DPOAE）、听觉脑干反应（ABR）和脑磁共振成像（MRI）来诊断这些患者的皮质性耳聋并进行失语测试。结果我们的研究表明，在所有3例患者中，波VI和波VII以及波I到V具有正常的abr峰值潜伏期。在脑部MRI中，我们发现三名患者的双侧听觉辐射近端完全损伤。结论我们认为“皮层下耳聋”是听觉失认症的一个亚型。
BackgroundIn central auditory disorders caused by damage of the cerebral hemispheres, there are cortical deafness and auditory agnosia. Although clinical cases of cortical deafness have been reported, little is known about the hearing problems and localized lesions associated with cortical deafness.Aims/objectivesThe aims of our research are to elucidate lesion sites associated with cortical deafness and to clarify why patients with cerebral lesions are not aware of any sound at all.Materials and methodsThree patients diagnosed as having total loss of hearing participated in this study. We conducted pure-tone audiometry, speech audiometry, distortion product otoacoustic emission (DPOAE), auditory brainstem response (ABR), and brain magnetic resonance imaging (MRI) to diagnose cortical deafness with aphasia tests of these patients.ResultsOur studies showed that waves VI and VII as well as waves I to V have normal peak latencies in ABRs in all three patients. In brain MRI, we found complete damage of proximal parts of bilateral auditory radiations in the three patients.ConclusionsWe propose ‘subcortical deafness’ as a subtype of auditory agnosia.