![]() ![]() His medical history and surgical history were significant only for a tonsillectomy. He had no record of any learning disorder. A had a history of ongoing nicotine dependence, he reported no past history of psychiatric disorders such as major depression or chemical dependency. ![]() After falling asleep, he often awakened several times during the night.Īlthough Mr. watching television or listening to music. He would typically stay awake until 2:00 or 3:00 a.m. His description of his sleeping habits indicated an altered sleep-wake pattern. He attended college but struggled academically, with a grade point average of 2.0 on a 4.0-point scale. The records of that previous sleep study were unavailable for review.Īfter high school, the patient’s excessive daytime sleepiness and cataplexy persisted. When the patient was 14, he had an overnight polysomnogram, which his parents reported gave no explanation for his symptoms. The patient also experienced incidents of inability to move for several minutes after awakening from sleep, which indicated sleep paralysis, and he had nightly dreams that he described as “very real.” These vivid dreams featured activities he had been engaged in during the preceding day. These phenomena are consistent with cataplexy. During these episodes, his head would nod or his knees would buckle, but he would not fall down. At age 13, he had daily spells of a sudden inability to move that were consistently triggered by laughter. This symptom started at age 11, when he and his family noticed that he seemed to need more sleep than his peers. ![]() A, a 21-year-old college student, came to a sleep disorders center for evaluation of excessive daytime sleepiness. ![]()
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