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Genetic and Rare Diseases Information Center (GARD)

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Hypokalemic periodic paralysis


Other Names for this Disease

  • HOKPP
  • HypoPP
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.

Overview

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. The duration and frequency of the episodes may vary. Hypokalemic periodic paralysis is caused by mutations in the CACNA1S and SCN4A genes which are inherited in an autosomal dominant fashion. A small percentage of people with the characteristic features of hypokalemic periodic paralysis do not have identified mutations in these genes. In these cases, the cause of the condition is unknown.[1] Paralytic crises can be treated with oral or IV potassium. Other management includes prevention of crises and support of specific symptoms.[2]
Last updated: 9/16/2009

References

  1. Hypokalemic periodic paralysis. Genetics Home Reference. April 2007; http://ghr.nlm.nih.gov/condition=hypokalemicperiodicparalysis. Accessed 4/20/2010.
  2. Sternberg D, Tabti N, Hainque B, Fontaine B. Hypokalemic periodic paralysis. GeneReviews. April 28, 2009; http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=gene&part=hpp. Accessed 4/20/2010.
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Basic Information

  • Genetics Home Reference (GHR) contains information on Hypokalemic periodic paralysis. This website is maintained by the National Library of Medicine.
  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
  • The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Hypokalemic periodic paralysis. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • HOKPP
  • HypoPP
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.