Non-Invasive Trigeminal Evoked Potentials: Normative Aging Data

Polich, John; Dj, Doyle; Aung, Moe H.; DeYarman, M

doi:10.1046/j.1468-2982.1995.015002147.x

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…This has not been reported in other studies. In contrast, in one study investigating the influence of age, sex and stimulation side on TSEP latencies, no substantial effects were found for subject age (n=50) (22). These different findings can not be readily explained, as the methodology used in that publication differs only slightly from ours.…”

Section: Discussioncontrasting

confidence: 72%

“…Drawbacks of these methods are that they may be painful and uncomfortable, and seem difficult to perform repeatedly in an out-patient clinic setting. Some authors searched for consistent and comparable responses, using a non-invasive technique, while avoiding muscle artefacts (22). As advised by Findler and Feinsod, we reversed the stimulus polarity after half of the stimulations, which indeed minimized the stimulus artefact (9, 16, 21).…”

Section: Discussionmentioning

confidence: 99%

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Reproducibility and Feasibility of Neurophysiological Assessment of the Sensory Trigeminal System for Future Application To Paroxysmal Headaches

Vliet¹,

Vein²,

Cessie

et al. 2002

Cephalalgia

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As the distribution of pain in primary headaches suggests involvement of the trigeminal sensory pathways, trigeminal somatosensory evoked potentials (TSEP) and blink reflexes (BR) may provide important information about their functional integrity. Functional differences between symptomatic and non-symptomatic sides and between measurements during and outside attacks may be particularly informative. These tests should therefore be reproducible and should require a suitable number of patients for future studies in patients with primary, paroxysmal headaches. We performed TSEP and BR twice in 22 healthy volunteers, in order to calculate sample sizes based on reproducibility data. This is, to our knowledge, the first study investigating the reproducibility of TSEP and BR measurements. Latencies of TSEP and BR are appropriate for future studies, as their reproducibility allows practical sample sizes (less than 25 subjects). Duration, amplitude and area parameters of the BR responses were less appropriate for longitudinal studies.

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Section: Discussioncontrasting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Reproducibility and Feasibility of Neurophysiological Assessment of the Sensory Trigeminal System for Future Application To Paroxysmal Headaches

Vliet¹,

Vein²,

Cessie

et al. 2002

Cephalalgia

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show abstract

“…However, the discussion did not end with this study from 1987. In our present study (1) we followed more recently published methods on TSEPs, and found results consistent with those studies (2, 3). In addition, we wholeheartedly agree that laser-evoked potentials may be useful in the assessment of unmyelinated trigeminal pathways (4).…”

supporting

confidence: 90%

Reply: Impairment of Trigeminal Sensory Pathways in Cluster Headache

2004

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“…It is also difficult to establish age-matched controls since those after the fifties usually take medications for another health condition. However, these criteria are not necessary because EP waveforms tend to be remarkably stable within and across subject age in both amplitude and latency 41 .…”

Section: Discussionmentioning

confidence: 99%

Salivary alpha-amylase and tooth pulp evoked potentials in paroxysmal trigeminal neuralgia patients

Vukovic¹,

Lazić

Nikolic³

et al. 2021

VOJNOSANIT PREGL

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Introduction / Aim. The sudden and excruciating pain that characterizes paroxysmal trigeminal neuralgia (PTN) has a negative effect on wellbeing of the affected individuals, causing psychological distress. Salivary alpha amylase (sAA) level represents an objective assessment of physical, physiological and psychological stress. Evoked potentials (EPs) can reflect nerve function and evaluate a functional aspect of the trigeminal nerve conduction. The aim of this study was to analyze possible modifications in painful impulses conduction related to sAA level by registering tooth pulp EP in PTN patients. Methods. Ten PTN patients and twelve healthy subjects participated in the study. Activity of sAA was measured using Nipro Salivary Amylase Monitor. To record EP response, dental pulp of vital teeth was electrically stimulated through intact enamel. For stimulation and impulse registration we used Xltek Protektor 32 system, software EPWorks, version 5.0. Results. The results obtained in PTN patients showed a higher number of waves and significantly shorter latencies and lower amplitudes N2-P2 and N3-P3 at the neuralgic side compared to the healthy side of the same patient, as well as to the controls (p<0.05). Also, latencies were significantly shorter in patients with higher sAA levels than in those with normal sAA levels (p<0.05). Late latencies (N2 and P2) at the healthy side in patients with higher sAA levels were significantly shorter compared to patients whose sAA levels were normal (p<0.05). Conclusion. This study showed that psychical stress associated with PTN probably further increased hyper-excitability and conduction velocity of the affected nerves. Moreover, it seems that anticipation of stressful pain even increases conduction velocity of unaffected nerves at the thalamo-cortical level in PTN patients. However, in healthy individuals, stress itself had no influence on painful impulses conduction.

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Non-Invasive Trigeminal Evoked Potentials: Normative Aging Data

Cited by 8 publications

References 16 publications

Reproducibility and Feasibility of Neurophysiological Assessment of the Sensory Trigeminal System for Future Application To Paroxysmal Headaches

Reproducibility and Feasibility of Neurophysiological Assessment of the Sensory Trigeminal System for Future Application To Paroxysmal Headaches

Reply: Impairment of Trigeminal Sensory Pathways in Cluster Headache

Salivary alpha-amylase and tooth pulp evoked potentials in paroxysmal trigeminal neuralgia patients

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