The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.
Idiopathic hypersomnia. A series of 42 patients
Abstract
The features of idiopathic hypersomnia are not well defined. We reviewed clinical and laboratory information on 42 subjects with idiopathic hypersomnia and obtained detailed follow-up evaluations on 28 of them. Only 29% of subjects had 'classic' idiopathic hypersomnia with non-imperative sleepiness, long unrefreshing naps, prolonged night-time sleep, difficult awakening with sleep drunkenness and prominent mood disturbances. Thirty-two percent had clinical features similar to narcolepsy, i.e. irresistible sleepiness, short and refreshing naps, few problems with awakening and good response to stimulants, without cataplexy or any indication of abnormal REM (rapid eye movement) sleep. The other 39% had intermediate clinical characteristics. We found no increase in the frequency of the human leucocyte antigens associated with narcolepsy. Overall, response to stimulants was good in three-quarters of the patients and spontaneous improvement of sleepiness occurred in one-quarter. Possible aetiologies identified in 10 patients included viral illness, head trauma and primary mood disorder. Idiopathic hypersomnia is a rare syndrome in which clinical heterogeneity suggests a variable or multifactoral pathogenesis. Only a minority of cases correspond to classical descriptions. Stimulants are often beneficial and spontaneous improvement appears to be more common than in narcolepsy.
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Cites
Rechtschaffen, A. (1968) · Medical Entomology and Zoology · Cited by 11,772
Guidelines for the Multiple Sleep Latency Test (MSLT): A Standard Measure of Sleepiness
Carskadon, M. A. (1986) · Sleep · doi:10.1093/sleep/9.4.519 · Cited by 1,603
Sleepiness in Different Situations Measured by the Epworth Sleepiness Scale
Johns, M. W. (1994) · Sleep · doi:10.1093/sleep/17.8.703 · Cited by 734
Nocturnal sleep of narcoleptics
Rechtschaffen, A., Wolpert, E. A., dament, W. C., Mitchell, S. A., & Fisher, C. (1963) · Electroencephalography and Clinical Neurophysiology · doi:10.1016/0013-4694(63)90032-4 · Cited by 301
Successful treatment of idiopathic hypersomnia and narcolepsy with modafinil
Bastoji, H., & Jouvet, M. (1988) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/0278-5846(88)90014-0 · Cited by 269
Sleep-Wake Disorders Based on a Polysomnographic Diagnosis: A National Cooperative Study
Coleman, R. M. (1982) · JAMA · doi:10.1001/jama.1982.03320320033026 · Cited by 249
The Pharmacologic Treatment of Depression
Oates, J. A., Wood, A. J. J., Potter, W. Z., Rudorfer, M. V., & Manji, H. (1991) · New England Journal of Medicine · doi:10.1056/nejm199108293250907 · Cited by 195
Studies in Psychophysiology of Dreams: III. The Dream of Narcolepsy
VOGEL, G. (1960) · Archives of General Psychiatry · doi:10.1001/archpsyc.1960.01710040091011 · Cited by 180
Hypersomnia and Manic-Depressive Disease
DETRE, T., HIMMELHOCH, J., SWARTZBURG, M., ANDERSON, C. M., BYCK, R., & KUPFER, D. J. (1972) · American Journal of Psychiatry · doi:10.1176/ajp.128.10.1303 · Cited by 170
Disorders of Excessive Daytime Somnolence: Polygraphic and Clinical Data for 100 Patients
van den Hoed, J., Kraemer, H., Guilleminault, C., Zarcone, V. P., Miles, L. E., Dement, W. C., & Mitler, M. M. (1981) · Sleep · doi:10.1093/sleep/4.1.23 · Cited by 165
Cited by
Mignot, E., Lammers, G. J., Ripley, B., Okun, M., Nevsimalova, S., Overeem, S., Vankova, J., Black, J., Harsh, J., Bassetti, C., et al. (2002) · Archives of Neurology · doi:10.1001/archneur.59.10.1553 · Cited by 1,126
Self-citationEvidence‐Based Recommendations for the Assessment and Management of Sleep Disorders in Older Persons
Bloom, H. G., Ahmed, I., Alessi, C. A., Ancoli‐Israel, S., Buysse, D. J., Kryger, M. H., Phillips, B. A., Thorpy, M. J., Vitiello, M. V., & Zee, P. C. (2009) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2009.02220.x · Cited by 464
Classification of Sleep Disorders
Thorpy, M. J. (2012) · Neurotherapeutics · doi:10.1007/s13311-012-0145-6 · Cited by 444
Excessive Sleepiness in Adolescents and Young Adults: Causes, Consequences, and Treatment Strategies
Millman, R. P., & Working Group on Sleepiness in Adolescents/Young Adults; and AAP Committee on Adolescence (2005) · Pediatrics · doi:10.1542/peds.2005-0772 · Cited by 372
Dauvilliers, Y. (2003) · Journal of Neurology, Neurosurgery & Psychiatry · doi:10.1136/jnnp.74.12.1667 · Cited by 313
Metadata
- Authors
- Bassetti, C.
- Venue
- Brain
- Publisher
- Oxford University Press (OUP)
- Published
- 1997-08-01
- Volume
- 120
- Issue
- 8
- Pages
- 1423-1435
- ISSN
- 0006-8950 (ISSN-L)
- 1460-2156
- OpenAlex
- W2044635723
- Cited by
- 306
- References
- 35
- FWCI
- 0.67
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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