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KMID : 1034320160070020074
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Sleep Medicine Research
2016 Volume.7 No. 2 p.74 ~ p.77
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Narcolepsy Patient Presenting as Drop Attack without Emotional Triggering and Subjective Sleepiness
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Baek Joon-Hyun
Jeon Ji-Ye
Lee Sang-Ahm
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Abstract
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Narcolepsy type I is characterized by excessive daytime sleepiness (EDS), cataplexy, sleep paralysis, hypnagogic hallucination, and fragmented night-time sleep. Although diagnosis is based on clinical history, it needs to be confirmed by nocturnal polysomnography, followed by a daytime multiple sleep latency test (MSLT). However, EDS, which is the central symptom of the narcolepsy, is unspecific and there could be a disparity between subjective daytime sleepiness and objective daytime sleepiness measured by MSLT. Also, cataplexy, which is the exclusive symptom of narcolepsy, has a wide phenotypical variability and is triggered by a range of stimuli, even without definite identifiable emotional trigger. We report an unusual narcolepsy patient with spontaneous cataplexy, without an identifiable trigger and subjective daytime sleepiness.
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KEYWORD
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Cataplexy, Narcolepsy, Excessive daytime sleepiness, Subjective sleepiness
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