Transient global amnesia

Transient global amnesia

Authors

  • Chiara Marazzi Post-Graduate School of Emergency-Urgency Medicine, University of Parma, Parma, Italy
  • Umberto Scoditti Stroke Unit and Neurology Clinic, University Hospital of Parma, Parma, Italy
  • Andrea Ticinesi Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy and Internal Medicine and Critical Subacute Care Unit, University Hospital of Parma, Parma, Italy
  • Antonio Nouvenne Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy and Internal Medicine and Critical Subacute Care Unit, University Hospital of Parma, Parma, Italy
  • Federica Pigna Post-Graduate School of Emergency-Urgency Medicine, University of Parma, Parma, Italy
  • Loredana Guida Internal Medicine and Critical Subacute Care Unit, University Hospital of Parma, Parma, Italy
  • Ilaria Morelli Internal Medicine and Critical Subacute Care Unit, University Hospital of Parma, Parma, Italy
  • Loris Borghi Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
  • Tiziana Meschi Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy and Internal Medicine and Critical Subacute Care Unit, University Hospital of Parma, Parma, Italy

Keywords:

transient global amnesia, episodic memory, hippocampus

Abstract

Transient Global Amnesia (TGA) is a clinical syndrome characterized by temporary inability to form new memories described as anterograde amnesia. It is associated with retrograde amnesia and repetitive questioning. During the attack patients remain conscious and communicative and personal identity is preserved. Focal neurological symptoms and epileptic features are absent and general conditions appear intact. The ability to store new memories gradually recovers and subjects return to normal conditions except for a substantial amnestic gap for the duration of the attack. TGA has an incidence of 3-8 per 100 000 people per year. It usually affects patients between the ages of 50 and 70 years, at an average age of 61 years; occurrence in patients younger than 40 years of age is rare. The rate of recurrence is between 6% and 10% per years. No gender prevalence has been recorded. The patients with definite TGA have a very good prognosis; their rate of subsequent major vascular events is less than 1% per year.

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Published

17-12-2014

How to Cite

1.
Marazzi C, Scoditti U, Ticinesi A, Nouvenne A, Pigna F, Guida L, et al. Transient global amnesia. Acta Biomed [Internet]. 2014 Dec. 17 [cited 2024 Jul. 24];85(3):229-35. Available from: https://www.mattioli1885journals.com/index.php/actabiomedica/article/view/3550