Early Changes of the M-wave of the Quadriceps Femoris Muscle Due to Denervation in Dogs

Haruta, Koichi; Sasaki, Masanori; Miyazono, Yuko; Inada, Shichiro; Watanabe, Shigeru

doi:10.1292/jvms1939.41.319

Cited by 2 publications

(7 citation statements)

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“…Recordings of individual motor unit potentials (MUP's) were obtained by graded muscle contraction induced by cutaneous or postural reflexes (6,27,28,30,49).…”

Section: Electromyography Of Normal and Denervated Musclementioning

confidence: 99%

“…Spontaneous activity was observed in the denervated muscle on the third day after nerve transection and consisted of infrequent positive sharp waves (27). Fibrillation potentials were observed incidentically on the fourth day (49) and fifth day (27). From the fifth day to the seventh day denervation potentials (fibrillation potentials and positive sharp waves) were found in all dogs involved in the studies.…”

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confidence: 96%

“…Electromyographic changes have been studied following experimental denervation (27, 30;49). Spontaneous activity was observed in the denervated muscle on the third day after nerve transection and consisted of infrequent positive sharp waves (27). Fibrillation potentials were observed incidentically on the fourth day (49) and fifth day (27).…”

mentioning

confidence: 99%

“…From the fifth day to the seventh day denervation potentials (fibrillation potentials and positive sharp waves) were found in all dogs involved in the studies. Fibrillation potentials occurred as early as five days after spontaneous traumatic nerve lesions (23 the muscle action potential (MAP) evoked by stimulation of the nerve distal to the site of transection decreased rapidly during the fifst three days after denervation (27). A motor response could no longer be evoked on the fourth or fifth day (49).…”

mentioning

confidence: 99%

“…There was no change in motor nerve conduction velocity at this time. Fibrillation potentials were reported to be generally diphasic with an initial positive deflection (23,27). The amplitude varied from 150 to 1,200 12V (49), 100 to 1,300 ktV (27) or 100 to 300 AV (23).…”

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confidence: 99%

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Clinical application of neuromuscular electrophysiology in the dog: A review

Nes

1986

Veterinary Quarterly

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SUMMARY A review of the literature concerning the application of electromyography and electroneurography in canine neurology is presented. Measurements of amplitude and duration of motor unit potentials in normal dogs varied largely in the various reports. It was therefore concluded that these measurements are of limited clinical value. The results of motorand sensory nerve conduction studies in normal dogs are summarised. The differences between the methods used are discussed. It is concluded that variations in reported normal values are due mainly to differences in method. The application of electromyography and electroneurography in neuromuscular disorders in the dog is systematically presented, based upon the reported diagnoses. The considerable number offirst descriptions of newly-recognised and described neuromuscular diseases appears to be related to the introduction of neuromuscular electrophysiology into veterinary medicine.

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“…Recordings of individual motor unit potentials (MUP's) were obtained by graded muscle contraction induced by cutaneous or postural reflexes (6,27,28,30,49).…”

Section: Electromyography Of Normal and Denervated Musclementioning

confidence: 99%

mentioning

confidence: 96%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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