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. 1983 Jan;46(1):93–95. doi: 10.1136/jnnp.46.1.93

Measurement of motor conduction velocity with Hopf's technique in myotonic dystrophy.

B Rossi, F Sartucci, A Stefanini, G Pucci, F Bianchi
PMCID: PMC1027273  PMID: 6842209

Abstract

Hopf's technique was used to measure maximal and minimal motor nerve conduction velocities, and the percentage of fibres with intermediate velocity, in the posterior tibial nerve in patients with myotonic dystrophy. A reduction of maximal and minimal conduction velocities was found. The distribution of fibres with intermediate velocity was nearly identical to that of the control group and the dispersion values were normal. These data do not support the hypothesis that a primary disturbance of the motor neurons is responsible for the muscle changes in myotonic dystrophy. The reduction of the motor nerve conduction velocity, which was an inconstant finding, should not be considered an indication of a neurogenic aetiology of myotonic dystrophy, but only one of the many disorders of a multisystem disease.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Ballantyne J. P., Hansen S. New method for the estimation of the number of motor units in a muscle. 2. Duchenne, limb-girdle and facioscapulohumeral, and myotonic muscular dystrophies. J Neurol Neurosurg Psychiatry. 1974 Nov;37(11):1195–1201. doi: 10.1136/jnnp.37.11.1195. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Borg J. Axonal refractory period of single short toe extensor motor units in neuropathies and neuromuscular diseases. J Neurol Neurosurg Psychiatry. 1981 Dec;44(12):1136–1140. doi: 10.1136/jnnp.44.12.1136. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Brooke M. H., Engel W. K. The histographic analysis of human muscle biopsies with regard to fiber types. 1. Adult male and female. Neurology. 1969 Mar;19(3):221–233. doi: 10.1212/wnl.19.3.221. [DOI] [PubMed] [Google Scholar]
  4. Caccia M. R., Negri S., Bolardi A., Crippa A. Study of the dispersion of motor nerve conduction velocity in charcot-marie-tooth-hoffmann disease and in steinert's syndrome. Z Neurol. 1972;201(3):211–217. doi: 10.1007/BF00316413. [DOI] [PubMed] [Google Scholar]
  5. Caruso G., Ferrannini E. Conventional electromyography in myotonic dystrophy. Riv Patol Nerv Ment. 1976 Sep-Oct;97(5):263–276. [PubMed] [Google Scholar]
  6. Chaco J. Conduction velocity of motor nerve fibers in progressive spinal atrophy. Acta Neurol Scand. 1970;46(1):119–122. doi: 10.1111/j.1600-0404.1970.tb05610.x. [DOI] [PubMed] [Google Scholar]
  7. Hausmanowa-Petrusewicz I., Kopeć J. Motor nerve conduction velocity in anterior horn lesions. Electromyography. 1970 Sep-Oct;10(3):227–237. [PubMed] [Google Scholar]
  8. Kalyanaraman K., Smith B. H., Chadha A. L. Evidence for neuropathy in myotonic muscular dystrophy. Bull Los Angeles Neurol Soc. 1973 Oct;38(4):188–196. [PubMed] [Google Scholar]
  9. Leifer L. J. Nerve fiber conduction velocity distributions: motor nerve studies using collision neurography. Prog Clin Biol Res. 1981;52:233–263. [PubMed] [Google Scholar]
  10. McComas A. J., Campbell M. J., Sica R. E. Electrophysiological study of dystrophia myotonica. J Neurol Neurosurg Psychiatry. 1971 Apr;34(2):132–139. [PMC free article] [PubMed] [Google Scholar]
  11. Monaco P., Smorto M., Caserta F., Bilello A. Le sindromi miotoniche. Indagini elettrofisiologiche su 7 casi clinici. Acta Neurol (Napoli) 1967 Nov-Dec;22(6):796–809. [PubMed] [Google Scholar]
  12. Mongia S. K., Lundervold A. Electrophysiological abnormalities in cases of dystrophia myotonica. Eur Neurol. 1975;13(4):360–376. doi: 10.1159/000114690. [DOI] [PubMed] [Google Scholar]
  13. Olson N. D., Jou M. F., Quast J. E., Nuttall F. Q. Peripheral neuropathy in myotonic dystrophy. Relation to glucose intolerance. Arch Neurol. 1978 Nov;35(11):741–745. doi: 10.1001/archneur.1978.00500350045009. [DOI] [PubMed] [Google Scholar]
  14. Panayiotopoulos C. P. F-wave conduction velocity in the deep peroneal nerve: Charcot-Marie-Tooth disease and dystrophia myotonica. Muscle Nerve. 1978 Jan-Feb;1(1):37–44. doi: 10.1002/mus.880010106. [DOI] [PubMed] [Google Scholar]
  15. Roohi F., List T., Lovelace R. E. Slow motor nerve conduction in myotonic dystrophy. Electromyogr Clin Neurophysiol. 1981 Feb-Mar;21(2-3):97–105. [PubMed] [Google Scholar]
  16. Walton J. N., Irving D., Tomlinson B. E. Spinal cord limb motor neurons in dystrophia myotonica. J Neurol Sci. 1977 Nov;34(2):199–211. doi: 10.1016/0022-510x(77)90068-5. [DOI] [PubMed] [Google Scholar]

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