hyperkalemic periodic paralysis

hy·per·ka·le·mic per·i·od·ic pa·ral·y·sis

[type II MIM*170500]

a form of periodic paralysis in which the serum potassium level is elevated during attacks; onset occurs in infancy, attacks are frequent but relatively mild, and myotonia is often present; autosomal dominant inheritance caused by mutation in the sodium channel gene (SCN4A) on chromosome 17q.

hyperkalemic periodic paralysis

See Periodic paralysis.

hy·per·ka·le·mic per·i·od·ic pa·ral·y·sis

(hī'pĕr-kă-lē'mik pēr'ē-od'ik păr-al'i-sis)

A form of periodic paralysis in which the serum potassium level is elevated during attacks; onset occurs in infancy, attacks are frequent but relatively mild, and myotonia is often present.
Synonym(s): hyperkalaemic periodic paralysis.