+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Transient topographical amnesia: a description of a series of eight cases

, : Transient topographical amnesia: a description of a series of eight cases. Revista de Neurologia 50(4): 217-220

Impaired memory, and more particularly spatial orientation, occurs in pathologies such as dementia, cerebrovascular accidents or traumatic brain injuries. Less frequently it also appears as a transient disorder in healthy people with no apparent brain damage, in which case it is known as transient topographical amnesia (TTA). The aim of this work is to report on a series of eight cases of TTA that were evaluated in a neurology unit. We study the cases of eight patients diagnosed with TTA over the period 2002-2008. Patients were considered to fulfil eligibility criteria if they had presented at least one episode of spatial disorientation, with no loss of memory or consciousness, and were able to describe the events that had taken place, without any previous cognitive impairment and with a normal neurological examination. The demographic characteristics taken into account in the study were: predominance of females (75%) and a mean age of 69.13 +/- 8.79 years. The mean number of episodes was 1.75 (range: 1-3), which lasted an average of 24.5 minutes. Three of the eight patients had associated vascular risk factors. Neuroimaging studies did not reveal any relevant findings in any of the eight patients, except one case of a bilateral frontal porencephalic area resulting from a traumatic brain injury suffered in the past. Simple single-photon emission tomography and Doppler ultrasound imaging scans of the brain, as well as an electroencephalogram, were performed on two patients, the results being normal in all cases. Follow-ups were performed on all the patients, without any kind clinical change being observed, except for one patient who developed dementia at six years after the episode of amnesia. TTA is possibly an underdiagnosed condition which we believe should be included in the differential diagnosis of patients who are referred owing to suspected cognitive impairment.


PMID: 20198593

Other references

Goulson, D.; Park, K.J.; Tinsley, M.C.; Bussière, L.F.; Vallejo-Marin, M., 2013: Social learning drives handedness in nectar-robbing bumblebees. Bumblebees have been found to observe and copy the behaviour of others with regard to floral choices, particularly when investigating novel flower types. They can also learn to make nectar-robbing holes in flowers as a result of encountering them....

Oldfield, R.C., 1959: The senior citizen: solution a local problem. Illinois Medical Journal 115(6): 319-323

Stoychev, S., 2001: Soil moisture distribution peculiarities under a hilly relief conditions. Experimentally, by means of three years continuous microclimatic investigations, the peculiarities of the soil moisture distribution, from the terrains, disposed in vine-yards under the conditions of the hilly relief of the town of Perushtitsa, Pl...

Cabidoche, M., 1961: Troglobitic Coleoptera from the western Pyrenees. Descriptions of Aphaenops bessoni, Aphenops cabidochei cosynsi and Ceutosphodrus navaricus brosseti. Ten other species are listed from the same area.

Anonymous, 1978: Rural America in the seventies. Rural development perspectives: 6-11

Pecold-Stepniewska, H.; Karolczak-Kulesza, Młgorzata.; Wasilewicz, R.; Krasiński, Z.; Kulesza, J., 2004: Glaucoma and ocular ischemic syndrome--case report. Ocular ischemic syndrome (OIS) is often poorly diagnosed and treated as primary open angle glaucoma or later on, as neovascular glaucoma. We present a 54 year old male, treated topical since 23 years for glaucoma and sent to our clinic for trabecu...

Ovcharenko V.I., 1982: Systematic list of the spider family gnaphosidae in the european part of the ussr and the caucasus. Data were presented on the distribution in the USSR of 98 spp. belonging to 17 genera of the Gnaphosidae family. The genera Echemus and Synaphosus are new records for the USSR. Zelotes atrocoeruleus, Z. pedestris, Z. pumilus, Haplodrassus hiemalis...

Messner, P.; Scheberl, A.; Schweigkofler, W.; Hollaus, F.; Rainey, F.A.; Burghardt, J.; Prillinger, H., 1997: Taxonomic comparison of different thermophilic sugar beet isolates with glycosylated surface layer (S-layer) proteins and their affiliation to Bacillus smithii. During the beet sugar campaign 1991/1992 we have characterized thermophilic bacteria from the extraction plant of an Austrian beet sugar factory in a polyphasic approach. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and fre...

Walcher, K.; Mory, M., 1975: To the trauma of the pisiform bone, a contribution to the rare injuries of the hand. Fractures and especially luxations of the pisiform bone are rare injuries of hands, of which X-ray pictures are very important. The few points and cases in the literature some own cases are added; a hitched luxation of the pisiform bone with opera...

Verma, I.S.; Sommer, H.H., 1958: The influence of pasteurization and cool-aging on the behavior of pure salt solutions prepared in accordance with the composition and concentrations in milk. In a solution of pure salts, prepared to simulate the composition of salts in milk serum, only 35.9, 72.9, 54.8 and 80.9% of Ca,Mg, Pand citric acid respectively, were in solution. The remaining separated as colloidal sediment upon centrifugation....