IllnessParamyotonia congenita
Summary
Curated single gene sequence analysis according to the clinical suspicion Paramyotonia congenita
- (Extended panel: incl. additional genes)
- EDTA-anticoagulated blood (3-5 ml)
NGS +
Gene panel
Selected genes
Name | Exon Length (bp) | OMIM-G | Referenz-Seq. | Heredity |
---|---|---|---|---|
SCN4A | 5511 | NM_000334.4 | AD |
Informations about the disease
Paramyotonia congenita begins in infancy or early childhood with myotonia as well as stiffness of the skeletal muscles and typically occurs after physical exertion or in the cold. The stiffness worsens the more the patient moves. Allelic disorders include hyperkalemic periodic paralysis, type 2; hypokalemic periodic paralysis, type 2; myasthenic syndrome 16, congenital; myotonia congenita, atypical, responsive to acetazolamide. Inheritance is autosomal dominant with almost complete penetrance in the allelic disorders - the only exception being autosomal recessive congenital myasthenic syndrome 16. The diagnostic yield has not yet been determined in representative cohorts.
Reference: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852070/
- Alias: Kältemyotonie
- Alias: Paramyotonia congenita Eulenburg
- Allelic: Hyperkalemic periodic paralysis, type 2 (SCN4A)
- Allelic: Hypokalemic periodic paralysis, type 2 (SCN4A)
- Allelic: Myasthenic syndrome, congenital, 16 (SCN4A)
- Allelic: Myotonia congenita, atypical, acetazolamide-responsive (SCN4A)
- Allelic: Paramyotonia congenita (SCN4A)
- AD
Bioinformatics and clinical interpretation
No text defined