无论是轻度，中度或是更严重的听力损失患者，助听器都可帮助或在某些条件下帮助他们。
Whether it is mild, moderate or severe patients with hearing loss, hearing aid can help or help them in some conditions.
纯音测听：发作时或发作后不久，可检测到轻度的、以低频听力损失为主的感觉神经性耳聋，发作后恢复正常或减轻。
Pure tone audiometry: Slight sensorineural hearing loss mainly at the lower frequency may be detected during or soon after attack. It may be recovered or lightened after the attack.
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