Sensitivity of laser-evoked potentials versus somatosensory evoked potentials in patients with multiple sclerosis

2003 ◽  
Vol 114 (6) ◽  
pp. 992-1002 ◽  
Author(s):  
Jörg Spiegel ◽  
Christiane Hansen ◽  
Ulf Baumgärtner ◽  
Hanns Christian Hopf ◽  
Rolf-Detlef Treede
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Laser Evoked Potentials

Usefulness of trigeminal somatosensory evoked potentials to detect subclinical trigeminal impairment in multiple sclerosis patients

2009 ◽  
Vol 89 (6) ◽  
pp. 412-414 ◽  
Author(s):  
R. Bergamaschi ◽  
A. Romani ◽  
M. Versino ◽  
R. Callieco ◽  
D. Gaspari ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Multiple Sclerosis Patients

Dyspnea-pain counterirritation induced by inspiratory threshold loading: a laser-evoked potentials study

2012 ◽  
Vol 112 (7) ◽  
pp. 1166-1173 ◽  
Author(s):  
Guillaume Bouvier ◽  
Louis Laviolette ◽  
Felix Kindler ◽  
Lionel Naccache ◽  
André Mouraux ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Normal Male ◽  
Work Effort ◽  
Top Down ◽  
Laser Evoked Potentials ◽  
Brain Potentials ◽  
Nociceptive Flexion Reflex ◽  
Electrical Stimuli ◽  
Experimentally Induced

Background: experimentally induced dyspnea of the work/effort type inhibits, in a top-down manner, the spinal transmission of nociceptive inputs (dyspnea-pain counterirritation). Previous studies have demonstrated that this inhibition can be assessed by measuring the nociceptive flexion reflex (RIII). However, its clinical application is limited because of the strong discomfort associated with the electrical stimuli required to elicit the RIII reflex. Study objectives: we examined whether the dyspnea-pain counterirritation phenomenon can be evaluated by measuring the effect of work/effort type dyspnea on the magnitude of laser-evoked brain potentials (LEPs). Methods: 10 normal male volunteers were studied (age: 19–30 years). LEPs were elicited using a CO2 laser stimulator delivering 10- to 15-ms stimuli of 6 ± 0.7 W over a 12.5 mm2 area. The EEG was recorded using nine scalp channels. Non-nociceptive somatosensory-evoked potentials (SEPs) served as control. LEPs and SEPs were recorded before, during, and after 10 min of experimentally induced dyspnea [inspiratory threshold loading (ITL)]. Results: pain caused by the nociceptive laser stimulus was mild. ITL consistently induced dyspnea, mostly of the “excessive effort” type. Amplitude of the N2-P2 wave of LEPs decreased by 37.6 ± 13.8% during ITL and was significantly correlated with the intensity of dyspnea [ r = 0.66, CI 95% (0.08–0.92, P = 0.0319)]. In contrast, ITL had no effect on the magnitude of non-nociceptive SEPs. Discussion: experimentally induced dyspnea of the work/effort type reduces the magnitude of LEPs. This reduction correlates with the intensity of dyspnea. The recording of LEPs could constitute a clinically applicable approach to assess the dyspnea-pain counterirritation phenomenon in patients.

scholarly journals Еvaluation data somatosensory evoked potentials and electromyography in patients with multiple sclerosis in the aspect comorbidity

2017 ◽  
pp. 22-29
Author(s):  
G. Chupryna ◽  
N. Svyrydova ◽  
T. Parnikoza
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Clinical Signs ◽  
Pain Syndrome ◽  
Pathological Process ◽  
Psychological Status ◽  
Sensorimotor Polyneuropathy ◽  
Initial Stage ◽  
Prevalence Of Pain

The paper shows the results of electrophysiological methods of investigation in patients with multiple sclerosis (MS) in the aspect of comorbidity. The studies of somatosensory evoked potentials (SSEP) in 216 patients with MS and electroneuromyography in 158 patients with MS, together with the assessment of neurological and psychological status. It is shown that according SSEP increase latency peripheral response in a progressive course of MS compared to remitting associated with older age of patients with progressive MS, and due to involvement in the pathological process of the peripheral nervous system (PNS) and the prevalence of pain syndrome (PS) in patients MS with comorbidity. It is demonstrated, on the basis of electroneuromyographic that MS patients with comorbidity tends to be deeper shock PNS. The data electroneuromyographic clinically appropriate initial stage of sensory or sensorimotor polyneuropathy, which proceeded in 84.8% of patients with MS subclinical and 15.2% had a clear clinical signs.

scholarly journals Pain Modulation after Oromucosal Cannabinoid Spray (SATIVEX®) in Patients with Multiple Sclerosis: A Study with Quantitative Sensory Testing and Laser-Evoked Potentials

Medicines ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 59 ◽  
Author(s):  
Mara Turri ◽  
Francesco Teatini ◽  
Francesco Donato ◽  
Giampietro Zanette ◽  
Valeria Tugnoli ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Quantitative Sensory Testing ◽  
Pain Modulation ◽  
Sensory Testing ◽  
Laser Evoked Potentials

Central Motor Conduction and Somatosensory Evoked Potentials in Multiple Sclerosis

1988 ◽  
Vol 5 (4) ◽  
pp. 366
Author(s):  
N. M. F. Murray ◽  
S. Ramamurthy ◽  
T. N. Schriefer ◽  
D. Claus
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials

Spinal and cortical somatosensory evoked potentials in Japanese patients with multiple sclerosis

1982 ◽  
Vol 57 (2-3) ◽  
pp. 441-453 ◽  
Author(s):  
Hiroshi Shibasaki ◽  
Ryusuke Kakigi ◽  
Sadatoshi Tsuji ◽  
Shigeki Kimura ◽  
Yoshigoro Kuroiwa
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Japanese Patients
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