Myotonia congenita (Thomsen's disease) report of five cases in a family.

Hardiono D. Pusponegoro, J. Zacharia, J. Passat

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2 Citations (Scopus)

Abstract

This report describes 5 out of 8 siblings who were the first cases of myotonia congenita diagnosed in our department. The parents were first cousins. Neither the parents, nor the other family members have myotonia. The affected siblings 4 boys and 1 girl, all showed a very typical myotonia especially after prolonged rest, and it could be worked off with continuing activity. They had a muscular looking body or a herculean proportion. The diagnosis were based upon family history, clinical findings of percussion myotonia, had grip myotania, prominent muscular hypertrophy and confirmed by electromyographic examination revealing myotonic discharges. Since there were some functional impairments, these patients were treated with diphenylhydantoin and then with quinine sulphate, with good results. The patients related parents were much likely to be heterozygous for the same harmful recessive genes, because they had common ancestor. The role of marriage counseling is important in this kind of inherited disease, to prevent the occurrence of this inherited disorder in the next generations.

Original languageEnglish
Pages (from-to)170-178
Number of pages9
JournalPaediatrica Indonesiana
Volume31
Issue number5-6
Publication statusPublished - 1 Jan 1991

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