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Article

Familial cramp due to potassium-aggravated myotonia.

Journal of neurology, neurosurgery, and psychiatry - 1 Oct 1998

Orrell R W, Jurkat-Rott K, Lehmann-Horn F, Lane R J

Abstract excerpt

Clinical, electrophysiological, and molecular genetic features were investigated in two patients from a family a with dominantly inherited myotonic disease, characterised by painful cramps, stiffness without weakness, fluctuation of symptoms, and cold sensitivity. A reduction in amplitude of the compound muscle action potential was demonstrated on cooling and administration of potassium, although no clinical...

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Identifiers

PMID: 9771789
DOI: 10.1136/jnnp.65.4.569
PMCID: PMC2170305

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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