Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
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Randomized Controlled Trial
The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.
The motivation of this study is to evaluate the possible alteration of regional resting state brain activity induced by the acute radiofrequency electromagnetic field (RF-EMF) exposure (30min) of Long Term Evolution (LTE) signal. ⋯ With resting state fMRI, we found the alteration of spontaneous low frequency fluctuations induced by the acute LTE RF-EMF exposure.
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Occipital electroencephalogram (EEG) activity is known to be different from the frontal EEG during wakefulness and anesthesia. However, less is known about occipital non-linear dynamics analyzed by EEG-bicoherence, which can reflect the oscillatory features that are dependent on thalamocortical modulation. ⋯ Nonlinear regulation of the occipital EEG is different from the frontal EEG during every stage of anesthesia.
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The aim of the present study was to assess whether peripheral mechanisms, mediated through axonal dysfunction, may contribute to development of the split-hand in amyotrophic lateral sclerosis (ALS). ⋯ Axonal dysfunction may appear as a downstream process that develops secondary to the intrinsic pathophysiological origins of ALS.
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The few published ultrasound (US) studies on chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) report diffusely increased cross-sectional area (CSA) of nerves. The data are, however, heterogeneous and correlations with clinical history or disease severity are lacking. ⋯ These results offer the possibility of exploring the use of US to assess CIDP disease activity and treatment.
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To describe the causes and outcome of adult patients with preserved electroencephalographic activity despite clinical findings suggesting brain death (BD), and its impact on organ donation. ⋯ The use of EEG can decrease the time interval for brain death diagnosis.