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New criteria aid diagnosis of traumatic encephalopathy syndrome

With the support of experts from the Uniformed Services University, diagnostic criteria have been developed for traumatic encephalopathy syndrome (TES), the clinical disorder associated with neuropathologically diagnosed chronic traumatic encephalopathy (CTE); the new consensus diagnostic criteria were published online March 15 in Neurology.

Douglas I. Katz, M.D., from the Boston University School of Medicine, buspar addiction and colleagues developed evidence-informed, expert consensus research diagnostic criteria for TES. Evidence was reviewed from all published cases of CTE with neuropathological confirmation; predictive validity data on clinical features in relation to CTE pathology were examined from a large clinicopathologic study (298 cases).

The authors note that a diagnosis of TES requires considerable exposure to repetitive head impacts (RHI) from contact sports, military service, or other causes; core clinical features of cognitive impairment and/or neurobehavioral dysregulation; and a progressive course. It also requires that these features are not fully accounted for by any other neurologic, psychiatric, or medical condition. Individuals meeting these criteria are graded for functional dependence on five levels, from independent to severe dementia. Based on specific RHI exposure thresholds, core clinical features, functional status, and additional supportive features (e.g., delayed onset, motor signs, and psychiatric features), a provisional level of certainty for CTE pathology is determined.

“The criteria are meant for use in research settings to facilitate investigations into the clinical features associated with CTE pathology and to fill other knowledge gaps, including the development of biomarkers for antemortem diagnosis of CTE,” the authors write.

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