Clinical use of cerebrospinal fluid orexin testing aids diagnosis of narcolepsy type 1 in Australians, indicating its importance.
A clinical diagnosis of narcolepsy type 1 can be challenging, particularly in relation to cataplexy. Despite its specificity, cerebrospinal fluid (CSF) orexin testing is under-utilised in Australasia. We describe the use of CSF orexin testing in 15 clinically indicated patients from two sleep centres, highlighting its utility in the Australasian context.
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Fernando et al. (2026) studied this question.
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