Transient weakness and compound muscle action potential decrement in myotonia congenita
✍ Scribed by Feza Deymeer; Sevinnç Çakirkaya; Piraye Serdaroğlu; Lothar Schleithoff; Frank Lehmann-Horn; Reinhardt Rüdel; Coşkun Özdemir
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 94 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0148-639X
No coin nor oath required. For personal study only.
✦ Synopsis
Twenty-five Turkish patients with recessive myotonia congenita (RMC), 16 of whom had genetic confirmation, were studied. Nineteen had transient weakness. In the upper extremities, onset age of transient weakness was usually in the early teens. All untreated RMC patients had a compound muscle action potential decrement of ജ25%, usually above 50%, with repetitive nerve stimulation at 10/s for 5 s. Patients with other nondystrophic diseases with myotonia, except 1 patient with dominant myotonia congenita, had no transient weakness and a CMAP decrement below 25%.
📜 SIMILAR VOLUMES
Diaminopyridine (3,4-DAP) is known to be beneficial in the symptomatic treatment of the Lambert-Eaton myasthenic syndrome (LEMS). The effects of 3,4-DAP on the decay of postexercise augmentation were observed in 6 patients with LEMS. After 10 s maximal voluntary contraction, the amplitude of the co