妳母親可能得的是一種罕見的Semicircular canal dehiscence syndrome。是一種因為 半規管裂開引起的症狀。 因為高音的壓力波會順著半規管破裂處波動入內耳，引起後序的頭暈等不適。 詳細的診斷需要電腦斷層或MRI ，因此到大醫院就診可能比較有幫助。 以下文章摘錄自Uptodate Pathophysiology, etiology, and differential diagnosis of vertigo Author Joseph M Furman, MD, PhD Section Editors Michael J Aminoff, MD, DSc Daniel G Deschler, MD, FACS Semicircular canal dehiscence syndrome — In semicircular canal dehiscence syndrome, the bone overlying the superior aspect of the superior semicircular canal becomes thin or even absent, thereby allowing pressure to be transmitted to the inner ear [18]. Vertigo is provoked by coughing, sneezing, and Valsalva maneuver [18-21]. Patients may experience nausea and instability during brief episodes of vertigo. Loud sound may also induce vertigo in this condition (Tullio phenomenon), as sound-induced pressure waves are abnormally distributed through the inner ear [18,22,23]. This phenomenon can be tested through a click-evoked vestibuloocular reflex, which is typically high magnitude and low threshold in patients compared with controls [21,24,25]. Cochlear hypersensitivity is another diagnostic indicator for this condition [26,27]. Some patients also have hearing loss, with air-bone gaps on audiometry [28]. One case report noted torsional pendular nystagmus that was synchonus with the palpated pulse, and suppressed by Valsalva maneuver or lying supine [29]. This is a rare syndrome. A 2005 review revealed less than 100 reported cases [28]. However, the condition may be underdiagnosed. The diagnosis can be established with an MRI or high resolution CT of the temporal bone [30]. Some patients benefit by surgical repair of their anatomical deficit [21]. ※ 引述《catfish88868 (^^)》之銘言： : ※ [本文轉錄自 Doctor-Info 看板] : 會不舒服 : 甚至會頭腦暈眩 : 有人能跟我講一下大概是什麼問題嘛 : 我在搜尋打了 : 高音 暈眩 等相關字眼 : 都找不太到答案 : 麻煩了 : 謝謝<(0.0)> (鞠躬) --

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