#Transient global amnesia frequency how to

Įtiology of TGA remains unclear with various hypotheses. , TGA episodes usually subside completely, but in 2.9%–26.3% patients there is a possibility of recurrence. Based on published studies, the mean age of an episode ranges from 61 to 67.3 years. TGA patients are usually middle-aged or elderly with the predominance in women. The incidence of this entity in the general population is estimated at 3.4–10.4/100,000/year. , The clinical picture of TGA is distinctive but its recognition requires good interviewing and observation skills. However, the ability to speak, visual-motor coordination, working memory, executive functions, and the ability to perform complex tasks (e.g., driving or cooking) remain intact. During TGA patients present impairment in learning new verbal material and disorientation in time. Typical repetitive questioning (e.g., Where am I? What is the time? What is happening?) must be witnessed by an observer to fulfill the TGA criteria. Approximately, one third of patients perform complex activities before an episode. , The onset of symptoms is sudden and unpredictable. , On examination of TGA patients, no symptoms and signs of neurological deficit are found. Typical features of TGA include anterograde amnesia (from a few to several hours, most often from 4 to 8) accompanied by repetitive questioning and disorientation with respect to time and place, but the preserved ability to recognize oneself and other people. Transient global amnesia (TGA) is a temporary short-term memory loss reversible within 24 hours. Transient Global Amnesia - Risk Factors and Putative Background.

#Transient global amnesia frequency how to

How to cite this URL: Waliszewska-Prosol M, Nowakowska-Kotas M, Bladowska J, Papier P, Budrewicz S, Pokryszko-Dragan A.

How to cite this article: Waliszewska-Prosol M, Nowakowska-Kotas M, Bladowska J, Papier P, Budrewicz S, Pokryszko-Dragan A. The role of autoimmune thyroiditis in the possible pathogenesis of TGA deserves further investigation. Keywords: Autoimmune thyroiditis, migraine, transient global amnesia, vascular risk factor Key Messages: The putative background of TGA is most likely cerebrovascular. Among comorbidities, autoimmune thyroiditis deserves further investigation with regard to its potential links with TGA. No evidence has been provided for the association between TGA and epilepsy or migraine. Electroencephalography abnormalities were observed in 10 (17.6%) of patients.Ĭonclusion: Our findings suggest a putative cerebrovascular background of transient global amnesia. Doppler ultrasonography of carotid arteries revealed abnormalities in 29 patients (51.8%). One patient (1,8%) suffered from migraine. In 92.9% patients chronic diseases were found, included: Hypertension (60.7%), dyslipidemia (48.2%), autoimmune thyroiditis (17.9%), and ischemic heart disease (14.3%). 35.7% patients had TGA in summer and 26.8% in winter months. The potential triggers or events before episode could be recognized in 22 patients (39.3%). Results: A total of 52 patients (92.9%) underwent their first-ever episode of TGA. Materials and Methods: A total of 56 patients (42 women and 14 men) with TGA hospitalized from 2008 to 2016 in the Department of Neurology, Wrocław Medical University. We analyzed clinical characteristics, neuroimaging, and electrophysiological findings as well as comorbidities and seasonal variation in TGA patients with regard to possible background of the syndrome. Etiology of TGA remains unclear with various hypotheses. Objectives: Transient global amnesia (TGA) is a temporary short-term reversible memory loss.