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2 OMIM references -
3 associated genes
No signs/symptoms info
COMMON GENES: 1
1 OMIM reference -
1 associated gene
13 signs/symptoms
Hypokalemic periodic paralysis
Acetazolamide-responsive myotonia

CACNA1S SCN4A
KCNE3
SCN4A


COMMON
GENES
SCN4A



Citations in the biomedical literature:


Hypokalemic periodic paralysis
CACNA1S KCNE3 SCN4A
Acetazolamide-responsive myotonia



Hypokalemic periodic paralysis
Acetazolamide-responsive myotonia

Synonym(s):
- Westphall disease

Synonym(s):
- ACZ-responsive congenital myotonia
- ACZ-responsive myotonia
- Acetazolamide-responsive congenital myotonia
- Myotonia - painful contractions
- Painful congenital myotonia
- Painful myotonia

Classification (Orphanet):
- Rare genetic disease
- Rare neurologic disease
Classification (Orphanet):
- Rare genetic disease
- Rare neurologic disease

Classification (ICD10):
- Diseases of the nervous system -
Classification (ICD10):
- Diseases of the nervous system -

Epidemiological data:
Class of prevalence: 1-9 / 100 000
Average age onset: childhood
Average age of death: normal
Type of inheritance: autosomal dominant
Epidemiological data:
Class of prevalence: 1-9 / 1 000 000
Average age onset: childhood
Average age of death: normal
Type of inheritance: autosomal dominant

External references:
2 OMIM references -
1 MeSH reference: D020514
External references:
1 OMIM reference -
No MeSH references

Acetazolamide-responsive myotonia

Very frequent
- Autosomal dominant inheritance
- Hypertonia / spasticity / rigidity / stiffness
- Myalgia / muscular pain
- Myotonia

Frequent
- Abnormal EMG / electromyogram / electropmyography
- Contractures / cramps / trismus / tetania / claudication / opisthotonos
- Thoracic / chest pain

Occasional
- Abnormal gait
- Abnormal muscle biopsy / muscle enzymes / CPK / LDH / aldolase / creatin phosphokinase
- Feeding disorder / dysphagia / swallowing / sucking disorder / esophageal dyskinesia
- Hypothyroidy
- Muscle hypertrophy
- Ophthalmoplegia / ophthalmoparesis / oculomotor palsy


Hypokalemic periodic paralysis

(no data available)