Hypernychthemeral syndrome
General Information (adopted from Orphanet):
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Synonyms, Signs:
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Non-24-hour sleep-wake syndrome
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Number of Symptoms
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8
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OrphanetNr:
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73267
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OMIM Id:
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ICD-10:
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G47.2
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UMLs:
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MeSH:
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MedDRA:
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Snomed:
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Prevalence, inheritance and age of onset:
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Prevalence:
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18.5
of 100 000
[Orphanet]
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Inheritance:
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Unknown
[Orphanet]
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Age of onset:
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All ages
[Orphanet]
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Disease classification (adopted from Orphanet):
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Parent Diseases:
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Sleep disorder
-Rare neurologic disease
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1
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(HPO:0000572)
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Visual loss |
Very frequent [Orphanet]
|
|
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272 / 7739
|
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2
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(HPO:0100851)
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Abnormal emotion/affect behavior |
Frequent [Orphanet]
|
|
|
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85 / 7739
|
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3
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(HPO:0002066)
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Gait ataxia |
Frequent [Orphanet]
|
|
|
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327 / 7739
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4
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(HPO:0002360)
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Sleep disturbance |
Very frequent [Orphanet]
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113 / 7739
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5
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(HPO:0100785)
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Insomnia |
Very frequent [Orphanet]
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18 / 7739
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6
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(HPO:0002354)
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Memory impairment |
Frequent [Orphanet]
|
|
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63 / 7739
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7
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(HPO:0002039)
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Anorexia |
Frequent [Orphanet]
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62 / 7739
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8
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(HPO:0001324)
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Muscle weakness |
Very frequent [Orphanet]
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859 / 7739
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ClinVar (via SNiPA)
| Gene symbol |
Variation |
Clinical significance |
Reference |