About The Medical Condition Familial Hyperkalemic Periodic Paralysis
Find the definition of the medical term Familial Hyperkalemic Periodic Paralysis. Familial Hyperkalemic Periodic Paralysis defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Familial Hyperkalemic Periodic Paralysis
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What's The Definition Of The Medical Condition Familial Hyperkalemic Periodic Paralysis?
An autosomal dominant familial disorder which presents in infancy or childhood and is characterized by episodes of weakness associated with hyperkalemia. During attacks, muscles of the lower extremities are initially affected, followed by the lower trunk and arms. Episodes last from 15-60 minutes and typically occur after a period of rest following exercise. A defect in skeletal muscle sodium channels has been identified as the cause of this condition. Normokalemic periodic paralysis is a closely related disorder marked by a lack of alterations in potassium levels during attacks of weakness. (Adams et al., Principles of Neurology, 6th ed, p1481)
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