The authors have tried to consider EEG criteria applicable to fitness for diving. In a study of 90 professional divers, 37 (41%) displayed patterns susceptible of being interpreted as falling outside of strict normalcy. These patterns have sometimes been considered incompatible with diving, or even pathological by some authors. Considering the fact that these subjects were in good health, the value of these EEG signs is discussed in comparison with the literature. A general guideline is proposed placing subjects in three groups: fit, unfit, and questionable. In the last case, a final decision is taken in each individual case in agreement with the other medical examinations and based on the type of diving considered. Some explicit EEG criteria of definitive or temporary fitness and unfitness are proposed.
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J Clin Neurophysiol
December 2024
Human Brain Mapping Program, University of Pittsburgh Medical Centre, Pittsburgh, Pennsylvania, U.S.A.; and.
Objectives: Our study aimed to compare signal characteristics of subdural electrodes (SDE) and depth stereo EEG placed within a 5-mm vicinity in patients with drug-resistant epilepsy. We report how electrode design and placement collectively affect signal content from a shared source between these electrode types.
Methods: In subjects undergoing invasive intracranial EEG evaluation at a surgical epilepsy center from 2012 to 2018, stereo EEG and SDE electrode contacts placed within a 5-mm vicinity were identified.
Alzheimers Dement
December 2024
Weill Cornell Medicine, New York, NY, USA; St Vincent's Hospital, Melbourne, VIC, Australia.
Background: Postoperative delirium (POD) is a serious complication of surgery associated with prolonged hospitalisation, long-term cognitive decline, dementia and mortality. There is increasing evidence that electroencephalography (EEG) monitoring may reduce the incidence of POD, however, the best method for achieving this is unclear.
Method: This presentation will present the results of a multicentre randomised clinical trial of 515 at-risk patients undergoing major surgery from 8 centres in 3 countries who were assessed for POD for 5 days postoperatively.
Alzheimers Dement
December 2024
National Center for Geriatrics and Gerontology, Obu City, Aichi, Japan.
Background: Cognitive reserve (CR) is a property of the brain trait that allows for better-than-expected cognitive performance, relative to the degree of brain change over the life course. However, the neurophysiological markers of CR require further investigation. Electroencephalography (EEG) may provide an appropriate neurophysiological marker of CR.
View Article and Find Full Text PDFBackground: Chronic pain remains mostly untreated in those with Alzheimer's disease and related dementias (ADRD), mainly due to limited capacity to verbalize pain. Development of reliable objective biomarkers of chronic pain could improve pain assessment and treatment. We explored feasibility and acceptability of using a wearable electroencephalograph (EEG) and a screen-based eye tracker system to identify neural signatures of chronic pain in this population.
View Article and Find Full Text PDFBackground: Vigilance and sleep disturbances in Alzheimer's and related diseases, even at the stage of mild cognitive impairment (MCI), have been extensively documented, showing abnormal daytime naps and alterations in the sleep-wake cycle. However, the EEG correlates of the transition from wakefulness to light sleep have not yet been compared between MCI patients due to Alzheimer's vs. other neurodegenerative diseases.
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