Faculdade de Ciências Médicas, Santa Casa de São Paulo, Rua Itapicuru no. 203, Perdizes, São Paulo.
Braz J Otorhinolaryngol. 2012 Dec;78(6):69-76. doi: 10.5935/1808-8694.20120036.
The phenomenon of Late-Onset Unilateral Auditory Deprivation was first reported in 1984. However, a high number of unilateral hearing aid fittings are still carried out in cases of bilateral hearing loss, justified by non-auditory factors such as cost, vanity, misinformation and public health policies.
To carry out behavioral and electrophysiological assessment of the auditory performance of adults using unilateral amplification compared with individuals exposed to bilateral symmetric auditory stimulation.
Thirty five adults, all with symmetric bilateral sensorineural hearing loss, regular users of unilateral hearing aid, bilateral hearing aids and not users of hearing aids, were assessed on behavioral and electrophysiological tests.
Variance analysis revealed that in the unilaterally fitted group, P300 latency was significantly greater in ears with auditory deprivation compared with those fitted with the hearing aid (p < 0.05). This same group also had poorer performance on the Sentence Recognition Test in Noise held in free field.
These results corroborate findings in the literature showing that unilateral auditory deprivation can lead to physiological and perceptual changes.
1984 年首次报道了迟发性单侧听觉剥夺现象。然而，由于成本、虚荣、信息错误和公共卫生政策等非听觉因素，仍有大量双侧听力损失患者被单侧助听器适配。
对使用单侧放大的成年人的听觉表现进行行为和电生理评估，并与双侧对称听觉刺激的个体进行比较。
对 35 名成年人进行了评估，他们均有对称的双侧感音神经性听力损失，单侧助听器、双侧助听器的常规使用者以及助听器非使用者。
方差分析显示，在单侧听力补偿组中，听觉剥夺耳的 P300 潜伏期明显长于助听器补偿耳（p<0.05）。该组在自由场噪声中进行的句子识别测试中的表现也较差。
这些结果与文献中的发现一致，表明单侧听觉剥夺会导致生理和感知变化。
