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Age‐related changes in laser‐evoked potentials following trigeminal and hand stimulation in healthy subjects
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- M. de Tommaso
- Department of Basic Medical Science Neuroscience and Sensory System (SMBNOS) Neurophysiopathology of Pain Unit University of Bari Aldo Moro Bari Italy
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- K. Ricci
- Department of Basic Medical Science Neuroscience and Sensory System (SMBNOS) Neurophysiopathology of Pain Unit University of Bari Aldo Moro Bari Italy
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- A. Montemurno
- Department of Basic Medical Science Neuroscience and Sensory System (SMBNOS) Neurophysiopathology of Pain Unit University of Bari Aldo Moro Bari Italy
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- E. Vecchio
- Department of Basic Medical Science Neuroscience and Sensory System (SMBNOS) Neurophysiopathology of Pain Unit University of Bari Aldo Moro Bari Italy
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Description
<jats:title>Abstract</jats:title><jats:sec><jats:title>Objective</jats:title><jats:p>This study aimed to evaluate age‐related changes in laser‐evoked potential (<jats:styled-content style="fixed-case">LEP</jats:styled-content>) features, including habituation, via trigeminal and hand stimulation in a large group of healthy volunteers.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We recorded the <jats:styled-content style="fixed-case">LEP</jats:styled-content>s by right‐hand stimulation in 237 healthy subjects and by stimulation of the right supraorbital zone in 170 cases. The subjects ranged in age from 7 to 72 years and were divided into six groups by age.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>At the trigeminal level, the N2 and P2 latencies were significantly shorter and the N2–P2 amplitude was significantly larger in the 7–17 age group than in the other groups. The N2–P2 amplitude of the responses evoked by hand stimulation was significantly larger in the 7–40 age range than in the older subjects. The N1 amplitude and latency were not significantly different among the groups. The N2–P2 habituation increased with age, but no significant changes among groups were revealed by the Bonferroni test.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Trigeminal vertex <jats:styled-content style="fixed-case">LEP</jats:styled-content>s have greater amplitudes and appear earlier in children, while a progressive age‐related amplitude decrease characterizes the N2–P2 waves associated with hand stimulation. The N2–P2 habituation increases in older people. The N1 latency and amplitude seem to remain stable during ageing and are therefore potentially reliable and useful patterns for nociceptive system examination.</jats:p></jats:sec><jats:sec><jats:title>Significance</jats:title><jats:p>Standardization of age‐related changes in trigeminal and hand <jats:styled-content style="fixed-case">LEP</jats:styled-content>s is possible and should improve their reliability in the objective assessment of pain pathways.</jats:p></jats:sec>
Journal
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- European Journal of Pain
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European Journal of Pain 21 (6), 1087-1097, 2017-02-16
Wiley
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Details 詳細情報について
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- CRID
- 1360013172697057792
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- DOI
- 10.1002/ejp.1010
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- ISSN
- 15322149
- 10903801
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- Data Source
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- Crossref