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Hippocampal cavities are not associated with cognitive impairment in transient global amnesia.
MedLine Citation:
PMID:  21199181     Owner:  NLM     Status:  Publisher    
Background:  Hippocampal sulcal cavities (HSC) have been speculated to contribute to a higher vulnerability of memory pathways and might be a possible etiological factor in transient global amnesia (TGA). Therefore, we evaluated the influence of HSC on cognitive long-term outcome in TGA-patients. Methods:  Fourteen otherwise healthy patients with the clinical syndrome of TGA in their history underwent a high-resolution magnetic resolution imaging and a comprehensive neuropsychological test battery. The neuropsychological control group consisted of 15 healthy subjects and was balanced for age, sex and other risk factors as well as intellectual and social status. Results:  Magnetic resolution imaging and neuropsychological testing have been performed 1128 days (median) after the TGA. HSC have been detected in nine of the 14 patients and have been bilateral in eight of them. There were no differences in cognitive performance in patients with and without HSC as well as compared to healthy subjects. Even in patients with greater lesion load, only a slight visuospatial deficit was found. Conclusions:  Although an increased incidence of HSCs is detected in TGA patients, cavities are not obligatorily in TGA. Moreover, even patients with hippocampal cavities achieve a full neuropsychological recovery independent of the frequency and size of the hippocampal lesions.
I Uttner; S Weber; W Freund; D Bengel; B Schmitz; A C Ludolph; R Huber
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-29
Journal Detail:
Title:  European journal of neurology : the official journal of the European Federation of Neurological Societies     Volume:  -     ISSN:  1468-1331     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2011-1-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9506311     Medline TA:  Eur J Neurol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2010 The Author(s). European Journal of Neurology © 2010 EFNS.
Department of Neurology Department of Diagnostic and Interventional Radiology, University of Ulm, Ulm Department of Neurology, Hospital St. Elisabeth Ravensburg, Ravensburg, Germany.
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