Nonlinear Analysis of Electroencephalogram during the Course of Electroconvulsive Therapy: A Single Case Study / 신경정신의학
Journal of Korean Neuropsychiatric Association
;
: 1119-1129, 1999.
Artigo
em Coreano
| WPRIM
| ID: wpr-194536
ABSTRACT
OBJECTIVES:
In order to search for new parameters for the evaluation of the adequacy of electroconvulsive therapy (ECT) the authors performed a non-linear analysis of electroencepha-logram(EEG)recorded during the course of electroconvulsive therapy(ECT)in a single female patient with depression.METHODS:
Digitized EEG recordings from two ECT sessions spaced one week were analyzed at five different stages; pretreatment stable, postanesthetic-preictal, ictal, postictal suppression and posttreatment stable stages.RESULTS:
Our analysis showed that 1)EEG signals had low dimensional (below 10 dimensions) deterministic characteristics 2) although EEG was nonstationary signal, non-linear parameters could reliably differentiate between various stages we examined. 3)the deterministic property of ictal EEG increased according to the progression of sessions and 4)the primary Lyapunov exponent(PLE)and correlation dimension of pre- and post-treatment stable stage EEG increased according to the progression of sessions.CONCLUSION:
In this single case study, results of various non-linear analyses suggested that non-linear variables extracted from EEG recordings during ECT may have utilities as tools for the quantitative evaluation of ECT.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Dinâmica não Linear
/
Depressão
/
Eletroconvulsoterapia
/
Eletroencefalografia
/
Estudos de Avaliação como Assunto
Tipo de estudo:
Estudo diagnóstico
/
Estudos de avaliação
/
Estudo prognóstico
Limite:
Feminino
/
Humanos
Idioma:
Coreano
Revista:
Journal of Korean Neuropsychiatric Association
Ano de publicação:
1999
Tipo de documento:
Artigo
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