A 21-year-old male asked:
what is sporadic fatal insomnia? what are the sign and symptoms of it?
2 doctor answers
Dr. Pamela Pappas answered
41 years experience Psychiatry
SFI: Sporadic fatal insomnia is a very rare, transmissible neurodegenerative disease characterized by the accumulation of a misfolded protein (the prion protein) in the brain. Symptoms include disrupted sleep, autonomic dysfunction, and motor abnormalities including myoclonus, ataxia, dysarthria, dysphagia, and pyramidal signs like clonus on exam. There may be peculiar behaviors too.
Answered on Dec 3, 2015
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