Document Type : Review Article
Authors
- Mohsen Farjoud-Kouhanjani 1
- Mohammad Shafie’ei 2
- Mohammad Hossein Taghrir 3
- Zahra Akbari 2
- Seyed Mohammad Amir Hashemi 1
- Zahra Eghlidos 1
- Afshin Borhani-Haghighi 4
- Abbas Rahimi-Jaberi 5
1 Professor Alborzi Clinical Microbiology Research Center, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
2 School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
3 Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
4 Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
5 Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran Non-Communicable Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
Abstract
Background: Transient global amnesia (TGA) is a sudden-onset transient memory impairment along with intact neurologic examinations. Even though it is a benign neurologic condition with many differential diagnoses, the incidence rate of TGA is reported to have increased since the onset of the pandemic. Therefore, this systematic scoping review aims to investigate TGA in that context.
Methods: MEDLINE, Scopus, and Google Scholar databases were systematically searched for relevant articles with a string of specified keywords.
Results: The primary search yielded 90 studies. After all the necessary screening rounds were carried out, we were left with six included studies. One study was also identified through a search in other relatively relevant databases. Finally, seven case reports were accepted including three TGA patients with positive and one with negative test for coronavirus disease-2019 (COVID-19), respectively. COVID-19 status was unclear in the others.
Conclusion: The reported COVID-19 positive cases had presentations similar to those with TGA before the pandemic. Therefore, we think that TGA might occur concomitantly with the COVID-19 infection or due to the psychological impact of the pandemic. In the confirmed cases of TGA and COVID-19, the abnormal findings may be due to COVID-19 infection. However, the reports were not as complete as desired. Therefore, providing the readers with more detailed reports in future cases is recommended.
Keywords
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