Neuromyotonia in idiopathic hypoparathyroidism.
Alpha 62-year-old man was presented with bilateral cataract, proximal muscle weakness and difficulty in relaxing the hands after voluntary contraction. Idiopathic hypoparathyroidism was diagnosed. Electrophysiological study showed spontaneous motor unit action potentials, occurring and disappearing abruptly, as duplets, triplets and multiplets, with an intra-burst frequency of up to 100 Hz and some of them waning in amplitude, findings consistent with neuromyotonia.
Zambelis
Thomas
T
Department of Neurology, Aeghinition Hospital, University of Athens, 74, Vassilissis Sofias Avenue, 11528 Athens, Greece. tzabelis@med.uoa.gr
Licomanos
Dimitrios
D
Leonardos
Athanassios
A
Potagas
Constantinos
C
D004576:Electromyography; D005500:Follow-Up Studies; D006801:Humans; D007011:Hypoparathyroidism / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology*; D020386:Isaacs Syndrome / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000503:physiopathology; D013997:Time Factors