Myotonia Fluctuans

Table of contents:

Description
Related genes
Clinical Features
Incidence and onset information
Alternative Names
Researches and researchers
Gene Panels
Sources and references

Description

Myotonia fluctuans (MF) is a form of potassium-aggravated myotonia (PAM, see this term) which is cold insensitive, dramatically fluctuating and profoundly worsened by potassium ingestion.

Genes related to Myotonia Fluctuans

SCN4A

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Clinical Features

Top most frequent phenotypes and symptoms related to Myotonia Fluctuans

Muscle weakness
Spasticity
Gait disturbance
Dysphagia
Myopathy
Hypertonia
Elevated serum creatine phosphokinase
Dyspnea
Myalgia
Muscle cramps

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.)
— No data available about the known clinical features onset.

Alternative names

Myotonia Fluctuans Is also known as fluctuating myotonia, exercise-induced delayed-onset myotonia.

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.

Myotonia Fluctuans 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 Panel complete gene list RYR1, BIN1, SCN4A, SGCA, SGCB, SGCD, SGCE, SGCG, SLC25A4, SUCLA2, SUCLG1, TWNK, TCAP, TIA1, TK2, TNNI2, TNNT1, TPM2, TPM3, MYOT, TTN, UBA1, VCP, VRK1, ACTA1, RXYLT1, FBXL4, CACNA1S, SLC5A7, CCDC78, CAPN3, DNAJB6, CAV3, B4GAT1, LDB3, BSCL2, SELENON, LIMS2, MGME1, TRIM32, FIG4, SPEG, KLHL41, SYNE2, SYNE1, TNPO3, BICD2, RRM2B, FKRP, TRPV4, CFL2, CHAT, POMGNT1, CHKB, CHRNA1, CHRNB1, CHRND, CHRNE, CHRNG, POMT2, CLCN1, CNTN1, AGK, COL12A1, COL6A1, COL6A2, COL6A3, COLQ, GMPPB, GNE, CRYAB, SIL1, LAS1L, TRAPPC11, REEP1, POMGNT2, MTMR14, POMK, DOK7, DAG1, DCTN1, ANO5, DES, STAC3, TMEM43, B3GALNT2, SMCHD1, PLEKHG5, DMD, TOR1AIP1, DYNC1H1, MEGF10, DNM2, DNMT1, DPM1, DPM2, DPM3, HSPB8, KLHL40, PNPLA2, DYSF, TYMP, EMD, FKTN, FHL1, KBTBD13, ISPD, FLNC, GAA, GAN, GARS, GLE1, SETX, AMPD1, HINT1, HNRNPDL, HSPB1, IGHMBP2, ITGA7, LAMA2, LAMP2, LARGE1, LMNA, LMOD3, MATR3, MTM1, MUSK, MYF6, MYH2, MYH7, NEB, ATP2A1, PABPN1, ATP7A, PHKA1, PLEC, PMM2, POLG, POLG2, POMT1, BAG3, CAVIN1, PYGM, RAPSN 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 Panel complete gene list RYR1, SCN4A, SLC16A1, SUCLA2, TWNK, TK2, TSFM, LPIN1, SLC25A20, CASQ1, CAV3, RRM2B, FKRP, CPT2, SIL1, CTDP1, ANO5, TSEN54, DGUOK, DMD, ISCU, FDX2, DYSF, AGL, ENO3, ETFA, ETFB, ETFDH, FKTN, GAA, ALDOA, AMPD1, HADHA, HADHB, LDHA, MT-CYB, ATP2A1, PFKM, PGAM2, PGK1, ACADM, PGM1, PHKA1, PHKB, POLG, ACADVL, PYGM 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 Panel complete gene list RYR1, SCN4A, SLC16A1, SUCLA2, TWNK, TK2, TSFM, LPIN1, SLC25A20, CASQ1, CAV3, RRM2B, FKRP, CPT2, SIL1, CTDP1, ANO5, TSEN54, DGUOK, DMD, ISCU, FDX2, DYSF, AGL, ENO3, ETFA, ETFB, ETFDH, FKTN, GAA, ALDOA, AMPD1, HADHA, HADHB, LDHA, MT-CYB, ATP2A1, PFKM, PGAM2, PGK1, ACADM, PGM1, PHKA1, PHKB, POLG, ACADVL, PYGM Specificity 3 % Genes 100 %

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Sources and references

You can check the following sources for additional information.

ORPHANET Rare Disease Search Engine

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