- 期刊
Transient Global Amnesia-An Unusual Case Report
暫時性全腦失憶症：一個罕見的病例報告
摘要
「暫時性全腦失憶症(Transient global amnesia, TGA)」的特性是突然的短暫性記憶喪失，包括前瞻性(antegrade)及回溯性(retrograde)的記憶喪失，沒有其他任何神經症狀。大多發生於五十歲左右的病人，發作時間持續數小時至二十四小時。其確定的發病原因尚未完全了解，但是暫時性全腦失憶症的發生在許多研究中，被研究者認為與暫時性缺血性發作(Transient ischemic attacks)、偏頭痛、癲癇或藥物等有關。 我們報告一例臨床上典型的暫時性全腦失憶症病例，於查詢本院六年來所有出院病例的所有診斷碼輸入資料後，在全部153,512筆出院病例中並未出現同一診斷。基於數項非直接證據的檢查均顯示局部的腦血流低下，我們相信局部中斷的腦血流是此病患的發病原因。
並列摘要
Transient global amnesia (TGA) is characterized by the sudden onset of transient memory loss, including antegrade amnesia and retrograde amnesia. The attack usually occurs in persons around age 50, and only lasting for several hours to 24 hours. The definite cause to this syndrome is not well known, although transient global amnesia has been documented in associated with transient ischemic attacks, migraine, epilepsy or drugs in some studies. We report a typical case of transient global amnesia, in reviewing the discharge medical charts over the previous 6 years in our medical center (＞1200 beds). Of the 163,512 discharged records, there are none of TGA. Several indirect evidences for regional brain hypo-perfusion were found in this case, we believe that disrupted regional brain perfusion was the main cause for this case.