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December 1979, Vol 36, No. 13 >
Article | December 1979

Short Latency Somatosensory Evoked Potentials in Patients With Neurological Lesions

Joseph B. Green, MD; Sarah McLeod, PhD
[+] Author Affiliations

Accepted for publication Dec 27, 1978.

Reprint requests to Department of Neurology, Medical College of Georgia, Augusta, GA 30912 (Dr Green).


Arch Neurol. 1979;36(13):846-851. doi:10.1001/archneur.1979.00500490060010
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• Short latency somatosensory potentials following median nerve stimulation were recorded in patients grouped according to anatomic location of neurological lesion. Patients with cerebral lesions causing severe sensory deficit lacked a major positive wave of cortical origin that in normal subjects peaked at a mean latency of 20.5 ms. Patients with severe cervical spinal cord disease lacked all of the normal somatosensory response except for the earliest component attributed to peripheral nerve activity. Patients with brain-stem lesions showed delayed latencies of later waves and prolonged interwave latencies. However, auditory evoked potentials measured in the group with brain-stem lesions were more helpful in localization. Analysis of short latency somatosensory potentials can discriminate between peripheral nerve, spinal cord, brain-stem, and cerebral lesions. Further experience and refinement of technique of measurement should increase the value of this procedure.

REFERENCES

1 +
Robinson K, Rudge P:  Auditory evoked responses in multiple sclerosis . Lancet 1:1164-1166, 1975;.
2 +
Starr A, Achor LJ:  Auditory brain stem responses in neurological disease . Arch Neurol 32:761-768, 1975;.
3 +
Starr A, Hamilton AE:  Correlation between confirmed sites of neurological lesions and abnormalities of far-field auditory brain stem responses . Electroencephalogr Clin Neurophysiol 41:595-608, 1976;.
4 +
Stockard JJ, Rossiter VS:  Clinical and pathologic correlates of brain stem auditory response abnormalities . Neurology 27:316-325, 1977;.
5 +
Giblin DR:  Somatosensory evoked potentials in healthy subjects and in patients with lesions of the nervous system . Ann NY Acad Sci 112:93-141, 1964;.
6 +
Namerow NW:  Somatosensory evoked responses in multiple sclerosis patients with varying sensory loss . Neurology 18:1197-1204, 1968;.
7 +
Williamson PD, Goff WR, Allison T:  Somatosensory evoked responses in patients with unilateral cerebral lesions . Electroencephalogr Clin Neurophysiol 28:566-575, 1970;.
8 +
Tsumoto T, Hirose N, Nonaka S, et al:  Cerebrovascular disease: Changes in somatosensory evoked potentials associated with unilateral lesions . Electroencephalogr Clin Neurophysiol 35:463-473, 1973;.
9 +
Green JB, Hamilton WJ:  Anosognosia for hemiplegia: Somatosensory evoked potential studies . Neurology 26:1141-1144, 1976;.
10 +
Goff GD, Matsumiya Y, Allison T, et al:  The scalp topography of human somatosensory and auditory evoked potentials . Electroencephalogr Clin Neurophysiol 42:57-76, 1977;.
11 +
King D, Green JB:  Short latency somatosensory evoked potentials in humans . Electroencephalogr Clin Neurophysiol 46:702-708, 1979;.
12 +
Cracco RQ, Cracco JB:  Somatosensory evoked potential in man: Far-field potentials . Electroencephalogr Clin Neurophysiol 41:460-466, 1976;.
13 +
Jones SJ:  Short latency potentials recorded from the neck and scalp following median nerve stimulation in man . Electroencephalogr Clin Neurophysiol 43:853-863, 1977;.
14 +
Chiappa KH, Choi SK, Young RR: Short latency somatosensory evoked responses (SEPs) in patients with neurological lesions. Read before the 32nd Annual Meeting of American Electroencephalographic Society, San Francisco, Sept 7, 1978.
15 +
Nakanishi T, Shimada Y, Sakuta M, et al:  The initial positive component of the scalprecorded somatosensory evoked potential in normal subjects and in patients with neurological disorders . Electroencephalogr Clin Neurophysiol 45:26-34, 1978;.
16 +
Iraqui-Madoz VJ, Wiederholt WC:  Farfield somatosensory evoked potentials in the cat: Correlation with depth recording . Ann Neurol 1:569-574, 1977;.

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1 +
Robinson K, Rudge P:  Auditory evoked responses in multiple sclerosis . Lancet 1:1164-1166, 1975;.
2 +
Starr A, Achor LJ:  Auditory brain stem responses in neurological disease . Arch Neurol 32:761-768, 1975;.
3 +
Starr A, Hamilton AE:  Correlation between confirmed sites of neurological lesions and abnormalities of far-field auditory brain stem responses . Electroencephalogr Clin Neurophysiol 41:595-608, 1976;.
4 +
Stockard JJ, Rossiter VS:  Clinical and pathologic correlates of brain stem auditory response abnormalities . Neurology 27:316-325, 1977;.
5 +
Giblin DR:  Somatosensory evoked potentials in healthy subjects and in patients with lesions of the nervous system . Ann NY Acad Sci 112:93-141, 1964;.
6 +
Namerow NW:  Somatosensory evoked responses in multiple sclerosis patients with varying sensory loss . Neurology 18:1197-1204, 1968;.
7 +
Williamson PD, Goff WR, Allison T:  Somatosensory evoked responses in patients with unilateral cerebral lesions . Electroencephalogr Clin Neurophysiol 28:566-575, 1970;.
8 +
Tsumoto T, Hirose N, Nonaka S, et al:  Cerebrovascular disease: Changes in somatosensory evoked potentials associated with unilateral lesions . Electroencephalogr Clin Neurophysiol 35:463-473, 1973;.
9 +
Green JB, Hamilton WJ:  Anosognosia for hemiplegia: Somatosensory evoked potential studies . Neurology 26:1141-1144, 1976;.
10 +
Goff GD, Matsumiya Y, Allison T, et al:  The scalp topography of human somatosensory and auditory evoked potentials . Electroencephalogr Clin Neurophysiol 42:57-76, 1977;.
11 +
King D, Green JB:  Short latency somatosensory evoked potentials in humans . Electroencephalogr Clin Neurophysiol 46:702-708, 1979;.
12 +
Cracco RQ, Cracco JB:  Somatosensory evoked potential in man: Far-field potentials . Electroencephalogr Clin Neurophysiol 41:460-466, 1976;.
13 +
Jones SJ:  Short latency potentials recorded from the neck and scalp following median nerve stimulation in man . Electroencephalogr Clin Neurophysiol 43:853-863, 1977;.
14 +
Chiappa KH, Choi SK, Young RR: Short latency somatosensory evoked responses (SEPs) in patients with neurological lesions. Read before the 32nd Annual Meeting of American Electroencephalographic Society, San Francisco, Sept 7, 1978.
15 +
Nakanishi T, Shimada Y, Sakuta M, et al:  The initial positive component of the scalprecorded somatosensory evoked potential in normal subjects and in patients with neurological disorders . Electroencephalogr Clin Neurophysiol 45:26-34, 1978;.
16 +
Iraqui-Madoz VJ, Wiederholt WC:  Farfield somatosensory evoked potentials in the cat: Correlation with depth recording . Ann Neurol 1:569-574, 1977;.

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