Hypokalaemic periodic paralysis

Also known as:
SCN4A
Periodic paralysis
CACNA1S
Hypokalaemic periodic paralysis

Last modified: 5th February 2023


Theoretical association with:

Hypokalemic periodic paralysis is a condition that causes episodes of extreme muscle weakness typically beginning in childhood or adolescence. Most often, these episodes involve a temporary inability to move muscles in the arms and legs.

Consider MHS if RYR1, CACNA1S, or unknown genotype

Mutation analysis of two patients with hypokalemic periodic paralysis and suspected malignant hyperthermia

Muscle and Nerve 2004

Hypokalemic periodic paralysis associated with malignant hyperthermia

Muscle and Nerve 2002

A novel sodium channel mutation in a family with hypokalemic periodic paralysis

Neurology 1999

Hypokalaemic periodic paralysis type 2 caused by mutations at codon 672 in the muscle sodium channel gene SCN4A

Brain 2001

217th ENMC International Workshop: RYR1-related myopathies, Naarden, The Netherlands

Neuromuscular Disorders 2016