ContentsSynopsisCodesBest TestsReferences
Familial hypokalemic periodic paralysis
Print
Other Resources UpToDate PubMed

Familial hypokalemic periodic paralysis

Print Images (1)
Contributors: Catherine Moore MD
Other Resources UpToDate PubMed

Synopsis

Rare autosomal dominant neuromuscular disorder typically found in adolescent males (due to mutations of CACNA1s and SCN4A). Characterized by episodes of painless muscle weakness precipitated by heavy exercise, fasting, or high-carbohydrate meals.

This paralysis, unlike hyperkalemic periodic paralysis, is associated with low potassium levels (<2.4 mEq/L; <2 suggests a secondary cause of hypokalemia). Established familial history is diagnostic.

For more information, see OMIM.

Codes

ICD10CM:
G72.3 – Periodic paralysis

SNOMEDCT:
82732003 – Familial hypokalemic periodic paralysis

Best Tests

Subscription Required

References

Subscription Required

Last Updated: 03/29/2017
Copyright © 2020 VisualDx®. All rights reserved.
Familial hypokalemic periodic paralysis
Print 1 Images
Familial hypokalemic periodic paralysis : Flaccid paralysis, Proximal muscle weakness, Recurring episodes or relapses, Reflexes decreased, Generalized weakness, K decreased
Copyright © 2020 VisualDx®. All rights reserved.