Transient epileptic amnesia

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The transient epileptic amnesia (TEA) is a very rare special form of temporal lobe epilepsy . The name was first proposed in 1990, earlier descriptions were made in 1974 as ictus amnesticus, in 1988 as epileptic transient amnesia and before that as epileptic amnestic attacks [EAA].

The epileptogenic focus is assumed to be in the hippocampus area. TEA manifests itself in frequently recurring - ictal and thus anterograde - memory disorders as the sole symptomatology, combined with persistent retrograde amnesia . The latter usually includes autobiographical content, but can also only include a few special biographical events. The most important differential diagnosis to TEA is transient global amnesia (TGA).

The recurrence of memory disturbances at short intervals, EEG abnormalities mostly temporal in the form of peak potentials , rapid improvement with anticonvulsants and the additional retrograde memory disturbance are primary criteria for differentiating TEA from TGA. Further differential diagnoses to TEA are so-called amnesic strokes , delirious states and dissociation . TEA is mostly seen in the elderly. It has not yet been clarified whether it precedes a future development of dementia .

literature

  • B. Engmann, Mike Reuter: The story of a sudden forgetfulness - memory disorders due to transient epileptic amnesia . In: Current Neurology . tape 30 , no. 7 , September 2003, ISSN  0302-4350 , p. 350-353 , doi : 10.1055 / s-2003-41889 .
  • Roberto Gallassi, A. Morreale, R. Di Sarro, E. Lugaresi: Epileptic amnestic syndrome . In: Epilepsia . 33 Suppl 6, 1992, p. 21-25 , PMID 1486832 (English).
  • Marcelo Heitor Ferreira Mendes: Transient epileptic amnesia. An underdiagnosed phenomenon? Three more cases . In: Seizure . tape 11 , no. 4 . Elsevier, June 2002, pp. 238–242 , doi : 10.1053 / seiz.2001.0587 (English).
  • Adrián L. Rabinowicz, Sergio E. Starkstein, Ramón C. Leiguarda, Anton E. Coleman: Transient epileptic amnesia in dementia. A treatable unrecognized cause of episodic amnestic wandering . In: Alzheimer Disease & Associated Disorders . tape 14 , no. 4 , October 2000, ISSN  0893-0341 , p. 231-233 , PMID 11186602 (English).
  • A. Sracciari, G. Ciucci, G. Bianchedi, GG Rebucci: Epileptic transient amnesia . In: European Neurology . tape 30 , no. 3 , 1990, ISSN  0014-3022 , pp. 176-179 , doi : 10.1159 / 000117339 (English).
  • P. Vuilleumier, PA Despland, F. Regli: Failure to recall (but not to remember). Pure transient amnesia during nonconvulsive status epilepticus . In: Neurology . tape 46 , no. 4 , April 1996, pp. 1036-1039 , doi : 10.1212 / WNL.46.4.1036 , PMID 8780086 (English).

Individual evidence

  1. ↑ André L. Palmini, Pierre Gloor, Marilyn Jones Gotman: Pure amnestic seizures in temporal lobe epilepsy . In: Brain . tape 115 , no. 3 . Oxford University Press, June 1, 1992, ISSN  0006-8950 , pp. 749-769 , doi : 10.1093 / brain / 115.3.749 , PMID 1628200 (English).
  2. ^ N. Kapur: Transient epileptic amnesia. A clinically distinct form of neurological memory disorder . In: Hans J. Markowitsch (Ed.): Transient Global Amnesia and related Disorders . 1st edition. Hogrefe and Huber, New York 1990, ISBN 978-0-920887-70-7 , pp. 140-151 (English).
  3. ↑ H. Ganner: Ictus amnesticus . In: Medical Practice . tape 26 . Banaschewski, 1974, ISSN  0001-9534 , p. 1872-1876 .
  4. ↑ Roberto Gallassi, Angela Morreale, Sebastiano Lorusso, et al .: Epileptic transient amnesia . In: Italian journal of neurological sciences . Suppl 9. Springer, Milan April 1988, p. 37-39 , PMID 3170170 (English).
  5. ↑ Christopher R. Butler, Kim S. Graham, John R. Hodges, et al .: The syndrome of transient epileptic amnesia . In: Annals of Neurology . tape 61 , no. 6 . Wiley, June 2007, ISSN  0364-5134 , pp. 587-598 , doi : 10.1002 / ana.21111 , PMID 17444534 (English).