Peripheral Sensory Conduction in Ulnar and Median Nerves of Normal Infants, Children, and Adolescents

Gamstorp, Ingrid; Samuel, Aravinthan D. T.

doi:10.1111/j.1651-2227.1965.tb06376.x

Cited by 61 publications

(18 citation statements)

References 9 publications

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“…Conduction velocity in children has reached the adult range by the age of 5 years (Gamstorp and Shelburne, 1965) LOWER LIMBS In nine patients mixed nerve action potentials were recorded from the lateral popliteal nerve at the head of the fibula after stimulation at the ankle. In Fig.…”

Section: Resultsmentioning

confidence: 99%

Electrophysiological studies of peripheral nerves in patients with organic mercury poisoning

Quesne

Damluji

Rustam

1974

Journal of Neurology, Neurosurgery & Psychiatry

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Section: Resultsmentioning

confidence: 99%

Electrophysiological studies of peripheral nerves in patients with organic mercury poisoning

Quesne

Damluji

Rustam

1974

Journal of Neurology, Neurosurgery & Psychiatry

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“…Maturation of conduction has been studied in other nerves in childhood. [4][5][6][7][8]10,11,19 In their studies of sensory conduction, Gamstorp and Shelburnes showed slightly higher latencies in early infancy and in adolescence than during the rest of childhood, and a rapid increase of conduction velocity during the first two years of life.…”

Section: Discussionmentioning

confidence: 97%

Nerve Conduction Studies of the Sural Nerve in Childhood

Bye

Fagan

1988

J Child Neurol

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A study of the sural nerve was undertaken to determine latency to onset and peak, duration of action potential, amplitude, and conduction velocity in 33 children, 1 to 7 years old. Multiple tests per patient resulted in 140 measurements per variable. To determine if the interpatient measurement variation was a significant factor compared to the intrapatient differences, one-way analysis of variance was performed. With each variable the F statistic showed the interpatient variation was significantly different (P less than .001) than the intrapatient measurement variation. There was no significant age effect in the latency to onset and peak, the amplitude, and the duration of action potential. The mean value for latency to onset was 2.430 msec, latency to peak 2.997 msec, duration 2.161 msec, and amplitude 8.736 muV. Age was highly significant (P less than .001) with conduction velocities calculated using latency to onset (CV1) and latency to peak (CV2), since distance was less in the younger child, according to the formulas: CV1 = 47.29 + 1.96 (age in years) and CV2 = 38.56 + 1.50 (age in years). Using regression analysis, temperature had no significant effect on CV1 or CV2.

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“…This discrepancy may be related to a difference between motor and sensory nerves or to the small range of gestational ages included in the present study. The latter explanation is most probable because the maturation of peripheral nerve conduction velocity in infants extends over a period of months and even years (10,12,29). and our newborn population has only a 6-week age range.…”

Section: Discussionmentioning

confidence: 99%

Short Latency Mechanically Evoked Peripheral Nerve and Somatosensory Potentials in Newborn Infants

1981

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Summarya 36-wk ~estational ape infant who was studied 4 days after birth.Mechanically evoked short-latency potentials were recorded from ten newborn infants ranging in gestational age from 36 to 42 wk and from a 3-month-old infant during natural sleep. Potentials were recorded from four electrode configurations: (1) over the peripheral nerve at the wrist: distal-proximal; (2) over the peripheral nerve at the axilla-deltoid insertion; (3) over the cervical spinal cord and cerebrum: Cn-F,,; and (4) over the cerebrum: C4-F,.. All subjects produced clear potentials from configurations 1, 2 and 3. Configuration 4 produced reliable potentials only in one newborn who was large for gestational age (42 wk) and the 3-month-old infant. ~v e r a~e peripheral nerve conduction velocities were 26 m/sec from wrist to axilla and 29 m/sec from axilla to neck. N o significant correlation was found between conceptional age and nerve conduction velocity. The application of this technique could allow lesion localization in peripheral as well as central portions of the somatosensory pathway of newborns.The &hod for kechanical stimulation and recordings has been described previously (21). and a number of modifications were made to accommodate the newborn population tested. In brief, subjects were tested immediately after feeding during spontaneous sleep. No monitoring of sleep stage was attempted because short latency components are independent of sleep stage (9). They were lying on a flat, padded surface, and the hand stimulated was supported by one examiner with the fingers taped to a flat board. Because of the subjects' small size. precautions against stimulusgenerated electrode movement artifacts were taken. Thus, care was taken that no other part of the hand was in touch with the supporting board. The surface on which subjects lay. the fingersupporting board, and the mechanical stimulator were placed on three separate stands. The stimulus was a 50-msec duration square electric pulse transduced by a moving coil vibrator. The vibrating tip had a 2 mm diameter hemispheric surface which. in the resting state. was ~e r~e n d i c u l a r to and iust in contact with the nail of the middle fi&e; Stimuli were delivered at a rate of 4/sec. The skin Sensory evoked potentials recorded by surface electrodes using temperature of the proximal Part of the fingers was measured and computer averaging have been utilized in the newborn nurseries. maintained at approximately 35°C throughout the recording sesAuditory ( I , 2, 18, 23, 25. 26, 28. 31) and visual evoked potentials sion. which lasted approximately 20 min. (14, 15, 30) have been well described and found to reflect periphTin disc electrodes, 6 mm in diameter. were placed over the eral (auditory) and central (auditory and visual) maturation in median nerve at the wrist and near the axilla, over the insertion of addition to indicating pathologic changes. Somatosensory evoked the deltoid muscle, over the second cervical vertebra (CII). over potentials in newborn infants have so far only been ob...

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Peripheral Sensory Conduction in Ulnar and Median Nerves of Normal Infants, Children, and Adolescents

Cited by 61 publications

References 9 publications

Electrophysiological studies of peripheral nerves in patients with organic mercury poisoning

Electrophysiological studies of peripheral nerves in patients with organic mercury poisoning

Nerve Conduction Studies of the Sural Nerve in Childhood

Short Latency Mechanically Evoked Peripheral Nerve and Somatosensory Potentials in Newborn Infants

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