- 期刊
水平半規管良性陣發性位置性眩暈－病例報告
Horizontal Canal Benign Paroxysmal Positional Vertigo – Case Report
摘要
良性陣發性位置性眩暈，一般系指病因在於後半規管內受耳石（canalith）侵犯，造成病人因為頭位的改變而誘發眩暈。近來醫學界發現不只是後半規管，水平半規管也有可能受到耳石侵犯，而產生相似的良性陣發性位置性眩暈，稱為水平半規管良性陣發性位置性眩暈。本院曾經歷1名50歲的女病患，因當日發作多次短暫眩暈噁心嘔吐而至本院急診。檢查時發現當病人平躺時，不論將其頭轉向左側或右側，均會誘發短暫的向地性水平眼振。經過其它相關檢查，診斷為水平半規管良性陣發性位置性眩暈，因此對該病人採用范式耳石復位術治療。7個月後追蹤，病人未曾再出現眩暈症狀。由於此種病例少見，但若經適當診斷和簡單治療，即可解決病患之困擾。
並列摘要
It is commonly known that benign paroxysmal positional vertigo results from the deposition of heavy density debris (canalith) in the posterior semicircular canal. With a change of head position, the debris moves in the canal and thus results in vertigo. Recently, it is found that this can also happen in the horizontal semicircular canal. A 50-year-old woman visited our hospital and claimed to suffer from repeated vertigo attacks. In supine position, vertigo could be induced by turning the patient’s head to either side. Temporal geotropic horizontal nystagmus appeared simultaneously. Under the impression of horizontal canal benign paroxysmal positional vertigo (HC-BPPV), she underwent a canalith reposition procedure. She reported no attacks of vertigo for 7 months after the treatment. We conclude that patients with HC-BPPV are curable by proper diagnosis and management.