![]() ![]() This may occur as the patient is falling asleep or awakening.The weakness is usually bilateral but one case report describes unilateral attacks.Frequency varies, from several attacks per day to less than one per year.Hearing, awareness and consciousness are intact.Slurred speech and visual symptoms such as blurred vision or diplopia may be experienced.In severe attacks, all voluntary muscles except the diaphragm may be affected. Severity can vary - eg, from a barely susceptible slackening of the facial muscles, dropping of the jaw or the entire head, to weakness at the knees or collapse on to the floor.Cataplexy is pathognomonic for narcolepsy and is present in around 70% of narcolepsy patients. Cataplexy attacks can last just a few seconds or many minutes. The emotional stimulus may be, for example, laughter, pleasure, anger or excitement. Ĭataplexy is defined as a sudden loss of voluntary muscle tone, with preserved consciousness, triggered by emotion. Autonomic symptoms have been reported in narcoleptic patients and include pupillary abnormalities, fainting spells, erectile dysfunction, night sweats, gastric problems, low body temperature, systemic hypotension, dry mouth, heart palpitations, headache and extremities dysthermia.EDS symptoms can severely disrupt daily life. #Cataplexy meaning full#
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