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Posttraumatic delayed sleep phase syndrome

From the Department of Neurology (Drs. Quinto, Chokroverty, and Masdeu), St Vincent’s Hospital of New York, New York Medical College, New York, NY; Department of Neurology (Dr. Chokroverty), Robert Wood Johnson Medical School, New Brunswick, NJ; Department of Neurology (Dr. Gellido), Albert Einstein College of Medicine, Bronx, NY.

Address correspondence and reprint requests to Dr. Christine Quinto, Department of Neurology, St. Vincent’s Hospital of New York, 153 West 11th Street, New York, New York 10011; e-mail: cquintomd{at}aol.com

Circadian rhythm sleep disorders may occur after traumatic brain injury. We describe a 48-year-old man who presented with sleep onset insomnia and cognitive dysfunction after a car accident. A diagnosis of delayed sleep phase syndrome (DSPS) was confirmed by sleep logs and actigraphy, which revealed sleep onset in the early morning hours and awakening around noon.

Key words: Sleep disorders—Delayed sleep phase syndrome

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