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Start free with EleplanPotassium-aggravated myotonia
ORPHA:612Clinical group
Also called K+-aggravated myotonia · K-aggravated myotonia · PAM
What it is
A muscular channelopathy presenting with a pure myotonia dramatically aggravated by potassium ingestion, with variable cold sensitivity and no episodic weakness. This group includes three forms: myotonia fluctuans, myotonia permanens, and acetazolamide-responsive myotonia.
Key facts
- Age of onset
- Childhood
- Inheritance
- Autosomal dominant
- Classified as
- Clinical group
Genes reported in subtypes
Orphanet records this gene on 3 more specific entries under this disorder, not on this entry itself:
A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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