Fact 6: TGA is Diagnosed Based on Symptoms and Medical History
Given the absence of specific risk factors and the transient nature of the condition, diagnosing transient global amnesia is based primarily on symptoms and a detailed medical history. There are no specific tests to confirm TGA. Instead, doctors rely on eliminating other possible conditions that could cause similar symptoms.
A thorough neurological examination usually reveals normal function, except for memory problems. The diagnosis is based on features such as sudden onset of memory loss, preserved consciousness and identity despite memory loss, and lack of signs that could suggest a stroke or seizures.
Patients often undergo brain imaging and electroencephalography (EEG) to rule out other conditions such as stroke or epilepsy. The lack of long-term effects on memory or cognition further confirms the diagnosis.
Diagnosing TGA can be challenging due to its fleeting nature. However, the characteristic features and lack of other neurological deficits can help physicians reach a diagnosis and reassure the patient and their family. (6)
