Skip to main content
Log in

Electromyographic findings in patients after recovery from peripheral nerve lesions and poliomyelitis

  • Original Investigations
  • Published:
Journal of Neurology Aims and scope Submit manuscript

Abstract

Electromyography was performed in 10 patients 14 to 50 years after acute poliomyelitis and in 12 patients 6 to 16 years after a peripheral nerve lesion. All patients had made an almost complete recovery from initially severe paresis. In the poliomyelitis group the main finding was an increased mean action potential duration in all patients. In the patients with peripheral nerve lesions an increased frequency of spontaneous activity could be seen in 8 out of 10 and an increased mean action potential duration in 7 out of 9 patients during the initial phase. Six to 16 years later the main pathological results were a prolonged mean action potential duration (9 out of 12 patients) whilst increased spontaneous activity was detectable only in 3 of 12 patients. In two patients all EMG findings were normal.

Zusammenfassung

Zehn Patienten, die vor 14 bis 50 Jahren eine Poliomyelitis durchgemacht haben, und 12 Patienten mit einer peripheren Nervenläsion vor 6 bis 16 Jahren sind elektromyographisch untersucht worden. Alle Patienten hatten initial schwere Paresen, die weitgehend geheilt sind. Bei den Patienten mit Poliomyelitis war eine verlängerte mittlere Potentialdauer der wichtigste Befund. Bei den Patienten mit peripheren Nervenläsionen war vermehrte Spontanaktivität und eine verlängerte mittlere Potentialdauer in 8 von 10 bzw. in 7 von 9 Fällen initial gefunden worden. Bei den Nachuntersuchungen war eine verlängerte Potentialdauer ebenfalls der wichtigste Befund (9 von 12 Patienten). Vermehrte Spontanaktivität fand sich nur in 3 von 12 Fällen. Bei 2 Patienten waren alle EMG-Befunde normal.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Buchthal F, Pinelli P (1953) Action potentials in muscular atrophy of neurogenic origin. Neurology (Minneap) 3:591–603

    Google Scholar 

  2. Buchthal F, Pinelli P, Rosenfalck P (1954) Action potential parameters in normal human muscle and their physiological determinations. Acta physiol scand 32:219–229

    Google Scholar 

  3. Dubowitz V, Brooke MH (1973) Muscle biopsy. A modern approach. Saunders, London, 475 pp

    Google Scholar 

  4. Erminio F, Buchthal F, Rosenfalck P (1959) Motor unit territory and muscle fibre concentration in paresis due to peripheral nerve injury and anterior horn cell involvement. Neurology (Minneap) 9:657–671

    Google Scholar 

  5. Hayward M, Seaton O (1979) Late sequelae of paralytic poliomyelitis: a clinical and electromyographic study. J Neurol Neurosurg Psychiat 42:117–122

    Google Scholar 

  6. Hertz H, Madsen A, Buchthal F (1954) Prognostic implications of electromyography in acute anterior poliomyelitis. J Bone Joint Surg 36A:902–911

    Google Scholar 

  7. Ludin HP (1974) Das normale Elektromyogramm. In: Hopf HC, Struppler A (eds) Elektromyographie. Thieme, Stuttgart, pp 8–17

    Google Scholar 

  8. Ludin HP (1980) Electromyography in practice. Thieme, Stuttgart New York, 173 pp

    Google Scholar 

  9. Medical Research Council (1976) Aids to the examination of the peripheral nervous system. Memorandum No 45. London, H. M. Stationery Office

    Google Scholar 

  10. Trojaborg W (1977) Prolonged conduction block with axonal degeneration. J Neurol Neurosurg Psychiat 40:50–57

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lütschg, J., Ludin, H.P. Electromyographic findings in patients after recovery from peripheral nerve lesions and poliomyelitis. J Neurol 225, 25–32 (1981). https://doi.org/10.1007/BF00313458

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00313458

Key words

Navigation