ArticleClinical neurophysiology practice2018
Clinical utility of contact heat evoked potentials (CHEPs) in a case of mentalis nerve lesion.
Article in Clinical neurophysiology practice, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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2 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.
- Application of facial neuromuscular electrical stimulation (fNMES) in psychophysiological research: Practical recommendations based on a systematic review of the literature.Behavior research methods · 2024Guideline
- Psychophysics of Pain: A Methodological Introduction.Pain management nursing : official journal of the American Society of Pain Management Nurses · 2023Article
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6 authors at 2 institutions in 1 country.
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Abstract
objectiveNociceptive evoked potentials are still infrequently used in electrodiagnostic studies of single patients. We report a case in which the results of contact heat evoked potentials (CHEPs) provided unique information for the diagnosis.
methodsAfter biopsy for a local cementoma, a 21-year-old woman presented with neuropathic pain in the distribution of her left mentalis nerve. A CT scan showed a well circumscribed lesion near the mentalis nerve groove. We examined brainstem reflexes and evoked potentials conveyed through the mentalis nerve.
resultsBlink reflex responses recorded from the orbicularis oculi, jaw jerk and masseteric silent period recorded from the masseter muscles and long latency evoked potentials recorded from Cz to electrical stimulation of the mentalis nerve were all within normal values, with no differences between sides. However, CHEPs, recorded from Cz to thermoalgesic stimulation of the left mentalis area were decreased to approximately 1/3 their size in comparison to stimulation to the unaffected side.
conclusionWhile the patient reported symptoms and had neuroimaging signs of mentalis neuropathy, the sole electrophysiological abnormality identified was that of CHEPs, which specifically test small, unmyelinated fibers. SIGNIFICANCE: Nociceptive evoked potentials can provide unique information on damage of small nerve fibers in specific cases.
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