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Familial Hypokalemic Periodic ParalysisLocal Recovery After Nerve Stimulation
Justiniano F. Campa, MD, PhD;
Donald B. Sanders, MD
Arch Neurol. 1974;31(2):110-115.
Abstract
Exercise can abort or postpone attacks of weakness in familial hypokalemic periodic paralysis (FHoPP). To determine its effect during established attacks, muscle contraction was produced by electrical stimulation of the ulnar nerve during attacks of weakness in two sisters with FHoPP. Repeated trains of stimulation produced normal strength and evoked potential amplitude in stimulated muscles without changing the strength or evoked potential of adjacent, nonstimulated muscles. It is suggested that the beneficial influence of muscle activity during attacks of FHoPP is a local membrane event resulting in recruitment of muscle fibers.
Author Affiliations
Charlottesville, Va
From the Department of Neurology, University of Virginia School of Medicine, Charlottesville.
Footnotes
Accepted for publication Dec 31, 1973.
Reprint requests to Department of Neurology, University of Virginia Hospital, Charlottesville, VA 22901 (Dr. Campa).
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