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• W4377823009 abstract "Abstract Background Young onset dementia (YOD) is a major diagnostic and management problem. Methods We set out to explore if electroencephalography (EEG) might be useful in the diagnosis of young onset Alzheimer’s disease (YOAD) and young onset frontotemporal dementia (YOFTD). The ARTEMIS project is a 25-year prospective study of YOD based in Perth, Western Australia. 231 participants were included: YOAD: n = 103, YOFTD: n = 28, controls: n = 100. EEGs were performed prospectively, with 30-minute recording time for each subject, without knowledge of diagnosis or other diagnostic data. Results 80.9% of patients with YOD had abnormal EEGs ( P < 0.00001). Slow wave changes were more frequent in YOAD that YOFTD ( P < 0.00001), but no difference in the frequency of epileptiform activity ( P = 0.32), with 38.8% of YOAD and 28.6% of YOFTD patients having epileptiform activity. Slow wave changes were more generalized in YOAD ( P = 0.001). Slow wave changes and epileptiform activity were not sensitive to the diagnosis of YOD, but highly specific (97–99%). The absence of slow wave changes and epileptiform activity had a 100% negative predictive value and likelihood radio 0.14 and 0.62 respectively, meaning that those without slow wave changes or epileptiform activity had low probability of having YOD. No relationship was established between EEG findings and the patient’s presenting problem. Eleven patients with YOAD developed seizures during the study, and only one with YOFTD. Conclusions The EEG is highly specific for the diagnosis of YOD with the absence of slow wave changes and epileptiform phenomena making the diagnosis unlikely, with 100% negative predictive value and with low probability for the dementia diagnosis." @default.
• W4377823009 created "2023-05-24" @default.
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• W4377823009 date "2023-05-23" @default.
• W4377823009 modified "2023-10-18" @default.
• W4377823009 title "Electroencephalography in young onset dementia" @default.
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• W4377823009 doi "https://doi.org/10.1186/s12883-023-03248-w" @default.
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• W4377823009 hasPublicationYear "2023" @default.
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