Reply To: Cataplexy and now Narcolepsy around the corner?

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Natdoc
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Ferret
Recently we have uncovered several patients with posttraumatic narcolepsy due to a closed head injury. In most of our patients chart reviews there was no mention of sleep disturbance in clinical notes, however, on further questioning we found that in all of them there was a history of fragmented sleep and varying degrees of daytime sleepiness. The head injuries ranged from concussive injuries to subdural hemmorhage. We have found that all of these patients also experienced injuries to the Thalamus or mid brain region. The etiology of post traumatic narcolepsy is still unknown as far as I know. I am wondering if there might be such a thing as a dormant narcolepsy which may become activated by trauma