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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1989-6-1
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pubmed:abstractText |
In a previous study from our laboratory, the prognostic significance of the auditory brainstem evoked response was assessed in high-risk neonates. An abnormal auditory brainstem evoked response predicted neurologic deficits at age 1 year; however, a normal result did not predict a normal outcome. In order to evaluate the prognostic utility of examining other sensory pathways, somatosensory evoked responses were elicited following median nerve stimulation. Testing was performed at 37-44 weeks conceptional age (defined as gestational age plus chronologic age) and at 2 and 6 months conceptional ages. Those patients studied included 34 high-risk neonates and 18 healthy, term infants as controls. Ten of the 34 patients had abnormal somatosensory evoked responses. Abnormalities included increased absolute (N19, P22) and interwave (N13-N19, N19-P22) latencies and flat potentials, alone or in combination. Three children with flat potentials demonstrated a persistence of this abnormality on subsequent examination and they later presented clinically with spastic quadriparesis. Four infants with increased latencies manifested normal responses on subsequent examination. Recently, these 4 patients exhibited tone abnormalities and mild developmental deficits; developmental outcome, however, will be assessed in a blind study at 1 year of age as part of this ongoing prospective study. Preliminary results suggest that somatosensory evoked responses may be valuable as an electrophysiologic predictor of outcome.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0887-8994
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
350-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3508083-Brain Damage, Chronic,
pubmed-meshheading:3508083-Brain Stem,
pubmed-meshheading:3508083-Evoked Potentials, Auditory,
pubmed-meshheading:3508083-Evoked Potentials, Somatosensory,
pubmed-meshheading:3508083-Humans,
pubmed-meshheading:3508083-Hypoxia, Brain,
pubmed-meshheading:3508083-Infant, Newborn,
pubmed-meshheading:3508083-Infant, Premature, Diseases,
pubmed-meshheading:3508083-Prognosis,
pubmed-meshheading:3508083-Reaction Time,
pubmed-meshheading:3508083-Risk Factors,
pubmed-meshheading:3508083-Somatosensory Cortex
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pubmed:articleTitle |
Somatosensory evoked response abnormalities in high-risk newborns.
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pubmed:affiliation |
Evoked Potentials Laboratory, Montreal Children's Hospital, Quebec.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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