TY - JOUR
T1 - Prolonged reversible amnesia
T2 - A case report
AU - Pai, Ming Chyi
N1 - Funding Information:
Although thousands of TGA cases have been reported, its definitive cause remains unknown. Among the most widely believed causes of TGA include cerebrovascular disease, epilepsy, and migraine. Other conditions related to TGA include cerebral angiography, 2 cerebral tumor, 3 and cerebral hemorrhage. 4 One of the criteria for the diagnosis of TGA is that the patient must recover from the attack within 24 hours. 5 Some patients, however, suffer transient amnesia, lasting longer than a day, from which From the Division of Behavioral Neurology, Department of Neurology, National Cheng Kung University Hospital, Tainan, Taiwan, Republic of China. Received July 28, 1999; accepted October 1,1999. Supported in part by a grant (NHRI-GT-EX89P707C) from the National Health Research Institute, Republic of China. Address reprint requests to Ming-Chyi Pai, MD, Department of Neurology, National Cheng Kung University Hospital, 138 Shen Li Road, Tainan, Taiwan 704, Republic of China. Copyright 9 2000 by National Stroke Association 1052-3057/00/0902-000753.00/0 they ultimately fully recover. This makes stringent criteria for the diagnosis of transient amnesia impractical.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - A 55-year-old woman sustained an acute amnesia that lasted for 8 days. The results of a cerebral magnetic resonance imaging scan and an electroencephalogram were normal. A Wechsler Memory Scale-Revised (WMS-R) test performed 6 days after the event showed global impairment in every domain, except for attention/concentration. A single photon emission computed tomography (SPECT) scan taken 8 days after the event showed hypoperfusion in the left temporal and frontal areas. The results of a follow-up SPECT scan on the 40th day after the episode were normal. A second WMS-R test showed some improvement on the 40th day after the event and considerable improvement on the 176th day. The clinical feature of the patient meets the criteria of transient global amnesia (TGA), except for her protracted course. It was not amnesic stroke, however, because of its reversibility and because there were no accompanying neurological signs. This case raises some implications of the pathogenesis of TGA and the clinical applicability of research criteria.
AB - A 55-year-old woman sustained an acute amnesia that lasted for 8 days. The results of a cerebral magnetic resonance imaging scan and an electroencephalogram were normal. A Wechsler Memory Scale-Revised (WMS-R) test performed 6 days after the event showed global impairment in every domain, except for attention/concentration. A single photon emission computed tomography (SPECT) scan taken 8 days after the event showed hypoperfusion in the left temporal and frontal areas. The results of a follow-up SPECT scan on the 40th day after the episode were normal. A second WMS-R test showed some improvement on the 40th day after the event and considerable improvement on the 176th day. The clinical feature of the patient meets the criteria of transient global amnesia (TGA), except for her protracted course. It was not amnesic stroke, however, because of its reversibility and because there were no accompanying neurological signs. This case raises some implications of the pathogenesis of TGA and the clinical applicability of research criteria.
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U2 - 10.1053/jscd.2000.0090086
DO - 10.1053/jscd.2000.0090086
M3 - Article
C2 - 17895203
AN - SCOPUS:0033784996
SN - 1052-3057
VL - 9
SP - 86
EP - 88
JO - Journal of Stroke and Cerebrovascular Diseases
JF - Journal of Stroke and Cerebrovascular Diseases
IS - 2
ER -