Transient global amnesia with post-hyperventilation temporal sharp waves—A case report

Abstract We report a 55-year-old woman, who presented with transient amnesia for 7 h following underwater swimming. There was no evidence of neurological disturbance except global amnesia. Sharp waves in both temporal regions were registered during the initial EEG recording, which was accentuated by...

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Bibliographic Details
Published in:Seizure (London, England) England), 2010-11, Vol.19 (9), p.609-611
Main Authors: Jeong, Hye Seon, Moon, Jeong Soo, Baek, In Chul, Lee, Ae Young, Kim, Jae Moon
Format: Article
Language:English
Subjects:
Amnesia, Transient Global - complications
Amnesia, Transient Global - pathology
Amnesia, Transient Global - physiopathology
Brain - pathology
Brain - physiopathology
Electroencephalography
Epilepsy
Female
Hippocampus - pathology
Hippocampus - physiopathology
Humans
Hyperventilation
Hyperventilation - complications
Hyperventilation - pathology
Hyperventilation - physiopathology
Magnetic Resonance Imaging
Middle Aged
Neurology
Tomography, Emission-Computed, Single-Photon
Transient global amnesia
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Summary:Abstract We report a 55-year-old woman, who presented with transient amnesia for 7 h following underwater swimming. There was no evidence of neurological disturbance except global amnesia. Sharp waves in both temporal regions were registered during the initial EEG recording, which was accentuated by hyperventilation. Right hippocampal high signal intensity was observed in DWI performed 56 h after symptom onset. The sharp waves were all disappeared on follow-up EEG recordings.
ISSN:1059-1311
1532-2688
DOI:10.1016/j.seizure.2010.09.002