Myotonia, Potassium-aggravated

Description

In a report on the 37th ENMC Workshop, Rudel and Lehmann-Horn (1997) stated that the sodium channelopathies can be divided into 3 different forms: paramyotonia, potassium-aggravated myotonia, and periodic paralysis. Potassium-aggravated myotonia includes mild myotonia fluctuans, severe myotonia permanens, and acetazolamide-responsive myotonia.

Clinical Features

Top most frequent phenotypes and symptoms related to Myotonia, Potassium-aggravated

  • Generalized hypotonia
  • Muscle weakness
  • Feeding difficulties
  • Fever
  • Fatigue
  • Elevated serum creatine phosphokinase
  • Myalgia
  • Apnea
  • Paralysis
  • Cyanosis

And another 9 symptoms. If you need more information about this disease we can help you.

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Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
— The onset for some of the known clinical features related to this disease may vary, including neonatal onset .

Alternative names

Myotonia, Potassium-aggravated Is also known as myotonia congenita, acetazolamide-responsive, myotonia fluctuans, sodium channel muscle disease, myotonia congenita, atypical, myotonia permanens.

Researches and researchers

Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.


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Myotonia, Potassium-aggravated Recommended genes panels

Panel Name, Specifity and genes Tested/covered
SCN4A (Myotonia) DNA Sequencing Test.

By Athena Diagnostics Inc (United States).

SCN4A
Specificity
100 %
Genes
100 %
Early Onset Myotonia Evaluation.

By Athena Diagnostics Inc (United States).

SCN4A, CLCN1, DMPK
Specificity
34 %
Genes
100 %
Myotonic Syndrome Advanced Evaluation.

By Athena Diagnostics Inc (United States).

SCN4A, CNBP, CAV3, CLCN1, DMPK, HSPG2, ATP2A1
Specificity
15 %
Genes
100 %
Periodic Paralysis Advanced Sequencing Evaluation.

By Athena Diagnostics Inc (United States).

SCN4A, CACNA1S, KCNJ2
Specificity
34 %
Genes
100 %
Congenital Myasthenic Syndrome Advanced Sequencing Evaluation.

By Athena Diagnostics Inc (United States).

SCN4A, CHAT, CHRNA1, CHRNB1, CHRND, CHRNE, COLQ, DOK7, DPAGT1, AGRN, GFPT1, MUSK, RAPSN
Specificity
8 %
Genes
100 %
Neuromuscular Disorders Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, SLC25A4, SUCLA2, SUCLG1, TWNK, TCAP, TIA1, TK2, TNNI2, TNNT1, TPM2, TPM3, MYOT , (...)

View the complete list with 124 more genes
Specificity
1 %
Genes
100 %
NGS Rhabdomyolysis and Metabolic Myopathies Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

RYR1, SCN4A, SLC16A1, SUCLA2, TWNK, TK2, TSFM, LPIN1, SLC25A20, CASQ1, CAV3, RRM2B, FKRP, CPT2, SIL1, CTDP1, ANO5, TSEN54, DGUOK, DMD , (...)

View the complete list with 27 more genes
Specificity
3 %
Genes
100 %
NGS Rhabdomyolysis and Metabolic Myopathies Panel.

By Greenwood Genetic Center Diagnostic Laboratories Greenwood Genetic Center (United States).

RYR1, SCN4A, SLC16A1, SUCLA2, TWNK, TK2, TSFM, LPIN1, SLC25A20, CASQ1, CAV3, RRM2B, FKRP, CPT2, SIL1, CTDP1, ANO5, TSEN54, DGUOK, DMD , (...)

View the complete list with 27 more genes
Specificity
3 %
Genes
100 %

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Sources and references

You can check the following sources for additional information.

OMIM Rare Disease Symptoms Checker

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