hyperkalemic periodic paralysis

(redirected from Impressive Syndrome)

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.
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hyperkalemic periodic paralysis

See Periodic paralysis.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012