Within this same study, 632 transient ischemic attack (TIA) subjects had greater rates of hypertension, diabetes mellitus, ischemic stroke, and atrial fibrillation when compared with TGA subjects, likely indicating differing risk factors between TGA and TIA. A retrospective case–control study found age- and sex-matched control subjects (n=293) to have significantly decreased odds of having hyperlipidemia and ischemic heart disease when compared with those subjects with TGA (n=293). 7Ĭardiovascular risk factors are also well studied in TGA. No associations were found between various migraine subtypes and TGA. 7 Additionally, of the subjects who developed TGA after the age of 40 years, those with a history of migraine had a significantly younger age of onset (56.6) compared to the control group (61.4). In a 2014 population-based study (n=316,602), migraine patients were significantly more likely to develop TGA than their matched controls, with the incidence rate ratio of 2.48. Accessed June 27, 2022.A migraine history is one of the more notable risk factors associated with developing TGA. Genetic and Rare Diseases Information Center. In: Bradley and Daroff's Neurology in Clinical Practice. Transient global amnesia: Current perspectives. In: Adams & Victor's Principles of Neurology. Dementia, the amnesic syndrome, and the neurology of intelligence and memory.
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