Cited by 80Pain Mechanisms and TreatmentsPain Management and TreatmentPain Management and Placebo Effect

Laser‐evoked potentials as a tool for assessing the efficacy of antinociceptive drugs

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Truini, A., Panuccio, G., Galeotti, F., Maluccio, M.R., Sartucci, F., Avoli, M., Cruccu, G.·2010·European Journal of Pain

Abstract

Laser‐evoked potentials (LEPs) are brain responses to laser radiant heat pulses and reflect the activation of Aδ nociceptors. LEPs are to date the reference standard technique for studying nociceptive pathway function in patients with neuropathic pain. To find out whether LEPs also provide a useful neurophysiological tool for assessing antinociceptive drug efficacy, in this double‐blind placebo‐controlled study we measured changes induced by the analgesic tramadol on LEPs in 12 healthy subjects. We found that tramadol decreased the amplitude of LEPs, whereas placebo left LEPs unchanged. The opioid antagonist naloxone partially reversed the tramadol‐induced LEP amplitude decrease. We conclude that LEPs may be reliably used in clinical practice and research for assessing the efficacy of antinociceptive drugs.

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Crossref · 10.1016/j.ejpain.2009.05.001

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Authors
Truini, A., Panuccio, G., Galeotti, F., Maluccio, M. R., Sartucci, F., Avoli, M., & Cruccu, G.
Affiliations
  • IRCCS San Raffaele Roma (IT)
  • Montreal Neurological Institute and Hospital (CA)
  • Istituto Superiore di Sanità (IT)
  • University of Pisa (IT)
Corresponding author
Cruccu, G.
Venue
European Journal of Pain
Publisher
Wiley
Published
2010-02
Volume
14
Issue
2
Pages
222-225
ISSN
  • 1090-3801 (ISSN-L)
  • 1532-2149
OpenAlex
W1997666775
Cited by
80
References
22
Citations by year
2026: 1 · 2025: 5 · 2024: 1 · 2023: 4 · 2022: 7 · 2021: 6 · 2020: 9 · 2019: 4 · 2018: 7 · 2017: 8 · 2016: 6 · 2015: 6 · 2013: 3 · 2012: 5
FWCI
2.88
Type
journal article
Language
en
Open access
Locations
  • European Journal of Pain (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Funders
  • Sapienza Università di Roma
  • Canadian Institutes of Health Research (8109_6, MT 8109)
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Pain Management and Treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Pain Management and Placebo Effect
Keywords
laser-evoked potentials, tramadol, naloxone, opioid antagonists, nociceptive pathways, drug efficacy evaluation
MeSH terms
Adult, Analgesics, Analgesics, Opioid, Double-Blind Method, Electroencephalography, Evoked Potentials, Female, Humans, Lasers, Male, Naloxone, Narcotic Antagonists, Pain, Pain Measurement, Tramadol, Cross-Over Studies

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