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Transient epileptic amnesia

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https://www.readbyqxmd.com/read/28148589/lesson-of-the-month-2-transient-reversible-amnesia-in-multiple-sclerosis
#1
Priya Devi Shanmugarajah, Jane Alty, Oliver Lily, Helen L Ford
Transient amnestic syndromes are fascinating clinical entities and there are several subtypes. Transient global amnesia (TGA) is characterised by sudden onset of anterograde amnesia with repetitive questioning, lasting less than 24 hours. The pathophysiology of TGA involves the medial temporal lobes and hippocampi. Episodes of TGA are thought to involve venous congestion with Valsalva-like activities, vascular or migrainous mechanisms. In contrast, transient epileptic amnesia manifests as brief and frequent episodes of amnesia due to seizure activity in the temporal lobes...
February 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28121745/neurotoxicity-associated-with-dimethyl-sulfoxide-used-in-allogeneic-stem-cell-transplantation
#2
Eda Ataseven, Özlem Tüfekçi, Şebnem Yilmaz, Handan Güleryüz, Hale Ören
Dimethyl sulfoxide (DMSO) is a cryoprotective agent used in storage of frozen stem cells in stem cell transplantation. Central nervous system side effects of DMSO such as epileptic seizures, stroke, transient global amnesia, and temporary leucoencephalopathy are rarely seen. Here, we report a pediatric patient who developed seizures after DMSO-cryopreserved stem cell infusion and whose magnetic resonance imaging of the brain demonstrated parietal and occipital focal cortical T2-signal intensity increase. DMSO toxicity should be kept in mind in patients who received cryopreserved stem cell infusion and magnetic resonance imaging may be helpful in differential diagnosis of central nervous system involvement...
January 24, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28038387/on-the-nose-olfactory-disturbances-in-patients-with-transient-epileptic-amnesia
#3
Sharon A Savage, Christopher R Butler, Fraser Milton, Yang Han, Adam Z Zeman
OBJECTIVE: While olfactory hallucinations are relatively rare in epilepsy, a high prevalence (up to 42%) has been reported in one form - Transient Epileptic Amnesia (TEA). TEA is characterized by recurring amnestic seizures and is commonly associated with persistent interictal memory deficits. Despite reports of changes in smell, olfactory ability has not been objectively assessed in this group. The aim of this study was to measure olfactory ability in patients with TEA and explore whether olfactory symptoms relate to other clinical variables...
December 27, 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27976620/amnesia-memory-disturbances-and-epilepsy
#4
Bondish Kambaja, Sophie Dupont
The epileptic syndromes, notably the temporal lobe epilepsy, frequently include memory disturbances. These memory disturbances may occur during seizures, i.e. ictal memory disturbances, or between seizures, i.e. interictal memory disturbances. Two atypical clinical epileptic syndromes should be pointed out in the elderly: the transient epileptic amnesia and the epileptic pseudodementia. Both represent potentially reversible memory disturbances and have a treatment based on antiepileptic drugs. Transient epileptic amnesia (TEA) is a subtype of medial temporal lobe epilepsy with late onset...
December 1, 2016: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/27955802/-transient-epileptic-amnesia
#5
REVIEW
Audrey-Anne Fouchard, Karl Mondon, Bertrand De Toffol
Transient epileptic amnesia (TEA) is a sub-type of mesial temporal lobe epilepsy, with amnesic seizures. TEA is characterized by recurrent episodes of amnesia. Diagnostic criteria are available for TEA, and these memory disturbances should not be misdiagnosed with transient global amnesia. The neuropsychological evaluation is normal, however, autobiographical memory impairment is present in 70% of the cases and accelerated long term forgetting in 44%. When a patient complains of memory disturbances, especially autobiographical memory, TEA must be considered especially if there was an amnesic episode and symptoms that suggest temporal epilepsia...
January 2017: La Presse Médicale
https://www.readbyqxmd.com/read/27886629/transient-epileptic-amnesia-over-twenty-years-long-term-follow-up-of-a-case-series-with-three-detailed-reports
#6
Sharon A Savage, Christopher R Butler, John R Hodges, Adam Z Zeman
PURPOSE: Transient Epileptic Amnesia (TEA) is a form of adult onset temporal lobe epilepsy characterised by ictal amnesia. The amnesic seizures are often accompanied by interical memory disturbance, involving autobiographical amnesia and accelerated long-term forgetting. Short-term follow-up studies suggest a relatively stable cognitive profile once treated, but recent case reports raise concerns regarding the risk of developing Alzheimer's disease (AD). The current study reports clinical and cognitive outcome in TEA patients over a 20-year period...
December 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27821268/transient-epileptic-amnesia-secondary-to-hippocampal-dysplasia-mimicking-transient-global-amnesia
#7
A A Fouchard, J Biberon, K Mondon, B de Toffol
No abstract text is available yet for this article.
December 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27658514/-non-criteria-neurologic-manifestations-of-antiphospholipid-syndrome-a-hidden-kingdom-to-be-discovered
#8
Md Asiful Islam, Fahmida Alam, Mohammad Amjad Kamal, Kah Keng Wong, Teguh Haryo Sasongko, Siew Hua Gan
Neurological manifestations or disorders associated with central nervous system (CNS) are one of the most common as well as important clinical characteristics of antiphospholipid syndrome (APS). Although in the last updated (2006) classification criteria of APS its neurological manifestations encompassed only transient ischemic attack (TIA) and stroke, diverse 'non-criteria' neurological disorders or manifestations (headache, migraine, bipolar disorder, transverse myelitis, dementia, chorea, epileptic seizures, multiple sclerosis, psychosis, cognitive impairment, Tourette's syndrome, parkinsonism, dystonia, transient global amnesia, obsessive compulsive disorder and leukoencephalopathy) have been observed in APS patients...
September 20, 2016: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/27356810/similarity-of-symptoms-between-transient-epileptic-amnesia-and-lewy-body-disease
#9
Katsuyuki Ukai, Hiroshige Fujishiro, Masako Watanabe, Kenji Kosaka, Norio Ozaki
Epilepsy with the main symptom of amnesia is known as transient epileptic amnesia (TEA). Dementia with Lewy bodies (DLB) is the second most common form of neurodegenerative dementia. The concept that Lewy body disease includes Parkinson's disease with dementia and dementia with Lewy bodies was proposed in the 2005 revision of the Clinical Diagnostic Criteria. Here, we describe a woman with cognitive impairment, olfactory dysfunction, and reduced (123) I-meta-iodobenzylguanidine uptake on myocardial scintigraphy...
June 30, 2016: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/27184771/psychiatric-and-behavioural-disorders-in-children-with-epilepsy-ilae-task-force-report-subtle-behavioural-and-cognitive-manifestations-of-epilepsy-in-children
#10
Frank Besag, Giuseppe Gobbi, Albert Aldenkamp, Rochelle Caplan, David W Dunn, Matti Sillanpää
A subtle behavioural or cognitive manifestation of epilepsy can be defined in two ways. First, epileptiform discharges not presenting as obvious seizures may nevertheless affect cognition and/or behaviour. Second, the actual seizures may be obvious but the way they affect cognition or behaviour may not be. There is a growing body of evidence indicating that the epileptiform discharges in benign epilepsy with centrotemporal spikes can affect behaviour and cognition. The focal discharges in other forms of epilepsy can also be associated with behavioural change...
May 16, 2016: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/27025088/-transient-epileptic-amnesia
#11
Kazuhiro Muramatsu, Takahito Yoshizaki
Transient amnesia is one of common clinical phenomenon of epilepsy that are encountered by physicians. The amnestic attacks are often associated with persistent memory disturbances. Epilepsy is common among the elderly, with amnesia as a common symptom and convulsions relatively uncommon. Therefore, amnesia due to epilepsy can easily be misdiagnosed as dementia. The term 'transient epileptic amnesia (TEA)' was introduced in the early 1990s by Kapur, who highlighted that amnestic attacks caused by epilepsy can be similar to those occurring in 'transient global amnesia', but are distinguished by features brevity and recurrence...
March 2016: Nihon Rinsho. Japanese Journal of Clinical Medicine
https://www.readbyqxmd.com/read/26907471/from-here-to-epilepsy-the-risk-of-seizure-in-patients-with-alzheimer-s-disease
#12
REVIEW
Nicolas Nicastro, Frédéric Assal, Margitta Seeck
To describe the association between Alzheimer's disease and seizures by reviewing epidemiological data from available literature and to assess the putative pathophysiological links between neurodegeneration and altered cortical excitability. We also discuss specific antiepileptic treatment strategies in patients with Alzheimer's disease, as well as transient epileptic amnesia as a possible crossroads between degeneration and epilepsy. Regarding epidemiology, we searched publications in Pubmed, Medline, Scopus and Web of Science (until September 2015) using the keywords "incidence", "prevalence" and "frequency", as well as "Alzheimer's disease" and "seizures"...
March 2016: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/26599496/the-gabab-receptor-agonist-baclofen-contributes-to-three-distinct-varieties-of-amnesia-in-the-human-brain-a-detailed-case-report
#13
Adam Zeman, Serge Hoefeijzers, Fraser Milton, Michaela Dewar, Melanie Carr, Claire Streatfield
We describe a patient in whom long-term, therapeutic infusion of the selective gamma-amino-butyric acid type B (GABAB) receptor agonist, baclofen, into the cerebrospinal fluid (CSF) gave rise to three distinct varieties of memory impairment: i) repeated, short periods of severe global amnesia, ii) accelerated long-term forgetting (ALF), evident over intervals of days and iii) a loss of established autobiographical memories. This pattern of impairment has been reported in patients with temporal lobe epilepsy (TLE), in particular the subtype of Transient Epileptic Amnesia (TEA)...
January 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/26362391/transient-global-amnesia-with-a-hippocampal-lesion-followed-by-transient-epileptic-amnesia
#14
LETTER
Atsuhiko Sugiyama, Makoto Kobayashi, Takashi Matsunaga, Tetsuya Kanai, Satoshi Kuwabara
No abstract text is available yet for this article.
September 2015: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/26122551/transient-memory-impairment-and-transient-global-amnesia-induced-by-photodynamic-therapy
#15
M Reinholz, M V Heppt, F S Hoffmann, N Lummel, T Ruzicka, P Lehmann, C Berking
Photodynamic therapy (PDT) is a commonly used and effective treatment option for nonmelanoma skin cancer. Apart from local side-effects such as pain, oedema and erythema, no major adverse events occur in the majority of cases. Here we report on five patients who developed memory deficits such as transient global amnesia immediately after PDT for actinic keratosis. All PDT treatments were performed according to standard therapy protocols. The reported patients had a memory gap for the entire procedure, as well as for the consecutive emergency medical care...
November 2015: British Journal of Dermatology
https://www.readbyqxmd.com/read/26083892/aristides-le%C3%A3-o-a-birth-centennial-homage-with-comments-on-his-spreading-depression
#16
Eliasz Engelhardt, Marleide da Mota Gomes
The year of 2014 is the birth centenary of Aristides Azevedo Pacheco Leão (1914-1993), and also marks seventy years of the publication of his discovery of the novel electrophysiological phenomenon, named by him "spreading depression" (SD), soon designated "Leão's wave" or "Leão's spreading depression". This was a remarkable scientific milestone, and the author must be celebrated for this achievement, as the studies he triggered proceeded worldwide, with new concepts, as spreading depolarization, until the present days...
June 2015: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/26058440/-transient-epileptic-amnesia
#17
Helene Jensen, Vaiva Petrenaite
Transient epileptic amnesia (TEA) is a presumably underdiagnosed syndrome belonging to the group of temporal lobe epilepsies. It can easily be misdiagnosed as transient global amnesia (TGA), transient ischaemic attack, psychogenic amnesia or even dementia. Many patients complain of loss of autobiographical memory and accelerated long-term forgetting. We present a case to emphasize both the importance of diagnosing TEA and the pitfalls between TEA and TGA syndrome.
June 1, 2015: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/25802501/transient-global-amnesia-and-brain-tumour-chance-concurrence-or-aetiological-association-case-report-and-systematic-literature-review
#18
Phil Milburn-McNulty, Andrew J Larner
We report a patient presenting with episodes of transient amnesia, some with features suggestive of transient global amnesia (TGA), and some more reminiscent of transient epileptic amnesia. Investigation with neuroimaging revealed an intrinsic lesion in the right amygdala, with features suggestive of low-grade neoplasia. We undertook a systematic review of the literature on TGA and brain tumour. Fewer than 20 cases were identified, some of which did not conform to the clinical diagnostic criteria for TGA. Hence, the concurrence of brain tumour and TGA is very rare and of doubtful aetiological relevance...
January 2015: Case Reports in Neurology
https://www.readbyqxmd.com/read/25769554/hippocampal-modifications-in-transient-global-amnesia
#19
REVIEW
P Quinette, J M Constans, M Hainselin, B Desgranges, F Eustache, F Viader
Transient global amnesia (TGA) is an acute and transient syndrome with a remarkably stereotypical set of signs and symptoms. It is characterized by the abrupt onset (no forewarning) of massive episodic memory impairment, both anterograde and retrograde. Ever since it was first described, TGA has fascinated neurologists and other memory experts, and in recent years, there has been a surge of neuroimaging studies seeking to pin down the brain dysfunction responsible for it. Several pathophysiological hypotheses have been put forward, including the short-lived suggestion of an epileptic mechanism...
March 2015: Revue Neurologique
https://www.readbyqxmd.com/read/25724712/transient-epileptic-amnesia-update-on-a-slowly-emerging-epileptic-syndrome
#20
REVIEW
O Felician, E Tramoni, F Bartolomei
Transient epileptic amnesia (TEA) is a recently individualized, late-onset, pharmaco-sensitive form of mesial temporal lobe epilepsy with recurrent episodes of acute memory loss, but also interictal memory disturbances characterized by autobiographical and topographical memory impairment and a long-term consolidation deficit. In this article, we review the main clinical and electrophysiological characteristics of TEA, discuss its putative neuroanatomical substrate and mechanisms, common features and how it differs from related concepts, with the overall aim to defend the idea that TEA deserves to be recognized as a distinct epilepsy syndrome...
March 2015: Revue Neurologique
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