Hypokalemic periodic paralysis
Hypokalemic Periodic Paralysis
Hypokalemic periodic paralysis (pronounced: hi-po-ka-lee-mik pe-ri-o-dik pa-ra-ly-sis) is a rare, autosomal dominant channelopathy characterized by muscle weakness or paralysis with a matching fall in potassium levels in the blood (hypokalemia).
Etymology
The term "Hypokalemic periodic paralysis" is derived from the Greek words "hypo" (meaning "under"), "kalemic" (referring to "potassium"), "periodic" (meaning "recurring at intervals"), and "paralysis" (meaning "loss of muscle function").
Definition
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.
Symptoms
Symptoms of Hypokalemic periodic paralysis may include progressive muscle weakness, temporary paralysis, and lower than normal levels of potassium in the blood during episodes.
Causes
Hypokalemic periodic paralysis is caused by mutations in the CACNA1S or SCN4A gene. These genes provide instructions for making proteins that play a crucial role in muscles used for movement (skeletal muscles).
Treatment
Treatment for Hypokalemic periodic paralysis often includes potassium supplements or medications to prevent attacks and manage symptoms.
Related Terms
External links
- Medical encyclopedia article on Hypokalemic periodic paralysis
- Wikipedia's article - Hypokalemic periodic paralysis
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