A study of the diagnostic utility of HLA typing, CSF hypocretin-1 measurements, and MSLT testing for the diagnosis of narcolepsy in 163 Korean patients with unexplained excessive daytime sleepiness.

Abstract excerpt

STUDY OBJECTIVE: To study DQB1*0602 status and hypocretin-1 levels in the cerebrospinal fluid (CSF) in a cohort of patients with hypersomnolence and to test International Classification of Sleep Disorders-2 (ICSD-2) criteria for hypersomnia of central origin. DESIGN: Retrospective case series. PATIENTS AND SETTING: One hundred sixty-three consecutive patients with unexplained sleepiness and 282 controls recruited...

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