Accordingly, many stroke units recently reported lower admission rates of patients with TIA or minor strokes since the beginning of the pandemic. One might speculate that the real increase in TGA incidence was even bigger as some patients might have taken distance from presenting to an emergency department in fear of getting infected with SARS-CoV-2 there. Between February 1st and May 15th (when a loosening of the preventive restrictions came into effect because of the decline of new Covid-19 infections in Germany) we diagnosed 16 patients with TGA while the average number of patients in the same period over the last 10 years was 9.7 (SD 2.41, 95%CI 8.3–11.1). Since the Covid-19 outbreak in Germany at the end of January 2020 we have noticed an increasing number of patients with TGA in our neurological emergency department in a German academic teaching hospital. Its etiology is still a matter of debate: focal hippocampal ischemia, venous congestion, migraine- or epilepsy-like mechanisms, and metabolic stress have been hypothesized. It often occurs in the context of physical or emotional stress. Watch closely for changes in your health, and be sure to contact your doctor or nurse advice line if you have any problems.The main clinical feature of transient global amnesia (TGA) is an acute anterograde memory disturbance that resolves within 24 h. You begin to have trouble with familiar things, such as how to read or how to tell time.You notice changes in your behaviour or personality.You are more confused, forgetful, or upset than usual.You do not know who you are or where you are.Ĭall your doctor or nurse advice line now or seek immediate medical care if:.You develop a fever with a stiff neck or a severe headache.A sudden, severe headache that is different from past headaches.Sudden problems with walking or balance.Sudden confusion or trouble understanding simple statements.Sudden numbness, tingling, weakness, or loss of movement in your face, arm, or leg, especially on only one side of your body.TGA does not increase the chance that you will have a stroke or seizures in the future.Ĭall 911 anytime you think you may need emergency care. Although you may never be able to remember what happened right before or during the episode, the rest of your memory should come back. If your doctor did not find any of these things to be the cause of your memory loss, you will not need treatment and you can go back to your usual activities. Your doctor probably did an examination and ran some tests to rule out certain health problems that can also cause sudden memory loss, such as a stroke, brain tumour, seizure, head injury, or an infection. People who get migraines are more likely to have TGA. But, in some cases, an intense workout, sex, or stress may cause an episode. An episode usually does not last more than 6 hours and it rarely happens again. Unlike other types of amnesia, you do know who you are and you can recognize people that you know. You may ask the same question many times. You may also not know where you are, why you are there, or what the date is. When this happens you cannot remember events from your recent past or make new memories. Transient global amnesia (TGA) is a rare type of amnesia that causes sudden memory loss.
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