Measurements of coherence in eeg signal in brazilian people: a comparison of different consciousness states
Biosci. j. (Online)
;
37: e37065, Jan.-Dec. 2021. tab
Artículo
en Inglés
| LILACS
| ID: biblio-1359939
ABSTRACT
Critically ill patients admitted to intensive care units require special care and the early diagnosis of the possible outcome of this coma is clinically important. Electroencephalographic signals are collected daily in critically ill patients and can be used to aid in the early diagnosis of neurological pathologies in such patients. Therefore, this study aimed to quantitatively describe the coherence values measured by the EEG signal of Brazilian individuals. The first group with comatose patients (N = 75), favorable (to live) or unfavorable (dying) outcomes, and various etiology. The second group was made by neurologically normal people, named the control group (N = 100). In addition, a number of statistical comparisons were made in order to verify the difference in coherence behavior according to the levels of consciousness. The coherence index of the comatose group is smaller than the control group. Besides, different hospitalization results, living or dying, as well as different etiologies, may be associated with particular values of cerebral coherence. It was observed that the etiology of coma does not influence the measured values of coherence in terms of diagnosis due to brain death, which may become a biomarker of this outcome. Another important consideration was that neurologically healthy patients did not present high values of cerebral coherence at all electrodes, as seen in the temporal region of the brain.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Estado de Conciencia
/
Electroencefalografía
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Biosci. j. (Online)
Asunto de la revista:
Agricultura
/
Disciplinas das Cincias Biol¢gicas
/
Pesquisa Interdisciplinar
Año:
2021
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Federal University of Uberlandia/BR
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