Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Observational Study
Role of multimodal intraoperative neurophysiological monitoring during positioning of patient prior to cervical spine surgery.
To determine the use of multimodal intraoperative neurophysiological monitoring (IONM) during positioning procedures in cervical spine surgery. ⋯ Multimodal IONM should not only be considered for detecting intra-operative warnings, but also during positioning.
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We aimed to provide additional evidence that brain functional alterations induced by IBS are not limited to local changes but also express at a level of functional integration within related brain regions involved in processing of visceral afferent information and somatic pain. ⋯ Our study may lead to a better understanding of intrinsic functional architecture of brain activity in IBS and highlight the potential for using the ALFF and FC metrics as a disease biomarker.
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Randomized Controlled Trial
A cortical source localization analysis of resting EEG data after remifentanil infusion.
To explore changes in current source density locations after remifentanil infusion in healthy volunteers using source localization of the electroencephalography (EEG). ⋯ The approach offers the potential to be used for understanding the underlying mechanism of action of remifentanil on brain activity.
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Routine electrophysiological testing is often normal in the evaluation of painful diabetic neuropathy, as it is unable to detect dysfunction of thinly myelinated (Aδ) and unmyelinated (C) small fibers. Although cutaneous silent periods (CSP) and quantitative sudomotor axon reflex testing (QSART) respectively evaluate these fiber types in the extremities, these two tests have yet to be assessed together. ⋯ For clinically suspected SFN, it is preferable to test more than one small fiber type, as each possess different structural and functional properties and may be heterogeneously affected between patients.
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To determine if transcranial direct current stimulation (tDCS) reduces both acute pain perception and the resultant cardiovascular responses. ⋯ Application of tDCS shifts the pain perception threshold in healthy individuals but does not significantly modulate efferent cardiovascular control at rest or in response to pain.