Narcolepsy with cataplexy

Author(s):  
Gert Jan Lammers

Narcolepsy with cataplexy is caused by disturbed cerebral hypocretin (also called orexin) transmission. It results in impaired physiological boundaries of wake and sleep stages and their specific components, leading to clinical symptoms such as excessive daytime sleepiness (EDS), impaired sustained attention, disturbed nocturnal sleep, cataplexy, and hypnagogic hallucinations. This chapter discusses the consequences for daily life of the disorder, the diagnostic challenges, particularly the interpretation of the results of the multiple sleep latency test (MSLT), the presumed cause and pathophysiology, the frequent comorbidities such as obesity, and practical guidelines for optimal nonpharmacological as well as pharmacological treatment.

Author(s):  
Jeny Jacob ◽  
Rajesh Venkataram ◽  
Nandakishore Baikunje ◽  
Rashmi Soori

AbstractNarcolepsy, a sleep disorder, has its onset in childhood and early adulthood but rarely in older adults. This case report focuses on a man in his late fifties who was noticed to have excessive daytime sleepiness during his stay in our hospital for an unrelated medical ailment. He was further evaluated with overnight polysomnography and next day multiple sleep latency test which confirmed the diagnosis of narcolepsy.


2014 ◽  
Vol 15 (9) ◽  
pp. 1046-1054 ◽  
Author(s):  
Giuseppe Plazzi ◽  
Fabio Pizza ◽  
Stefano Vandi ◽  
Debora Aricò ◽  
Oliviero Bruni ◽  
...  

1978 ◽  
Vol 45 (5) ◽  
pp. 621-627 ◽  
Author(s):  
Gary S Richardson ◽  
Mary A Carskadon ◽  
Wayne Flagg ◽  
Johanna Van den Hoed ◽  
William C Dement ◽  
...  

2017 ◽  
Vol 5 ◽  
pp. 2050313X1774886
Author(s):  
Diwakar D Balachandran ◽  
Saadia A Faiz ◽  
Lara Bashoura ◽  
Ellen Manzullo

Cancer-related fatigue is a common symptom in cancer patients which commonly occurs in relation to sleep disturbance. We report a case of a 35-year-old breast cancer survivor, in whom polysomnography and multiple sleep latency testing were utilized to objectively quantify the contribution of excessive daytime sleepiness to the patient’s cancer-related fatigue.


2009 ◽  
Vol 67 (4) ◽  
pp. 995-1000 ◽  
Author(s):  
Ulises Jiménez-Correa ◽  
Reyes Haro ◽  
Rosa Obdulia González ◽  
Javier Velázquez-Moctezuma

OBJECTIVE: To determine the correlations between excessive daytime sleepiness (EDS), assessed by the Epworth sleepiness scale (ESS), and the multiple sleep latency test (MSLT) and nocturnal sleep architecture features, clinical symptoms of narcolepsy (CSN) and subjective sleep quality (SSQ) in patients with narcolepsy. METHOD: Twenty three untreated patients were studied and compared with a matched control group. Diagnosis of narcolepsy was carried out employing a clinical interview, a polysomnographic (PSG) record, and an MSLT. RESULTS: Subjective number of awakenings was the SSQ indicator that best correlated with EDS (ESS and MSLT). Regarding clinical features, diurnal tiredness and sleep paralysis correlated with ESS values. Increase in ESS was related with decrease in total sleep time, SWS, and sleep onset latency. On the other hand, increase in MSLT was related with decrease in SWS. CONCLUSION: These data suggest that EDS in patients with narcolepsy could be impaired by disturbed nocturnal sleep.


1981 ◽  
Vol 53 (1) ◽  
pp. 103-112 ◽  
Author(s):  
Mary A. Carskadon ◽  
Kim Harvey ◽  
William C. Dement

Sleep, performance, and sleepiness were evaluated in nine (6 girls, 3 boys) children (ages 11 to 13.2 yr.) with a view toward determining whether children are more sensitive to sleep restriction than adults. In this 3-day study (immediately preceded by 3 adaptive days), sleep was permitted for 10 hr. on the baseline and recovery night, and for 4 hr. on a single restricted night. Effects of sleep restriction and subsequent recovery on nocturnal sleep parameters were very comparable to results seen in adult subjects. No significant effects of the procedure were seen in performance on abbreviated versions of the Wilkinson Addition Test and Williams Word Memory Test or on a listening attention task. Multiple sleep latency tests showed a significant increase with daytime sleepiness following sleep restriction, which persisted into the morning following recovery sleep. Children appear to be able to tolerate a single night of restricted sleep, although they do not recover as rapidly as adult subjects.


2020 ◽  
Vol 12 (3) ◽  
pp. 472-481
Author(s):  
Galina M. Diukova ◽  
Sergey A. Makarov ◽  
Valery L. Golubev ◽  
Ruslana R. Tyutina ◽  
Daniil A. Degterev ◽  
...  

Psychogenic or functional neurological disorders (FND) often occur in the practice of a neurologist. Diagnosis of FND usually causes significant difficulties. Among FND, psychogenic non-epileptic seizures (PNES) comprise around 40% cases. Sometimes it is necessary to differentiate PNES from narcolepsy. We describe a 55-year-old man with frequent brief and sudden sleep-like attacks in combination with nocturnal sleep disturbance. During attacks he was unresponsive, snoring but maintained posture. He resisted passive eye opening but with rolling eyes. The patient was confused on waking. In the interictal period, there were FND signs including give-way weakness of the left hand, typical functional “leg-dragging” gait, mistake in the finger-to-nose test. Video-electroencephalogram monitoring did not detect specific epileptic activity or sleep pattern during the attacks. Polysomnography showed multiple waking episodes during the night, but no typical pattern of narcolepsy was found in the multiple sleep latency test. The patient had frequent urgent hospitalizations due to different diseases and numerous invasive procedures. Six month later, the patient obtained state related disability financial benefit, after which hospitalizations in various hospitals continued, and PNES became shorter and less pronounced.


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