Spectral entropy in monitoring anesthetic depth
B Escontrela Rodríguez1, A Gago Martínez1, I Merino Julián1
1Servicio Anestesiología y Reanimación, Hospital Universitario de Cruces, Barakaldo, Vizcaya, España.
Abstract:
Monitoring the brain response to hypnotics in general anesthesia, with the nociceptive and hemodynamic stimulus interaction, has been a subject of intense investigation for many years. Nowadays, monitors of depth of anesthesia are based in processed electroencephalogram by different algorithms, some of them unknown, to obtain a simplified numeric parameter approximate to brain activity state in each moment. In this review we evaluate if spectral entropy suitably reflects the brain electric behavior in response to hypnotics and the different intensity nociceptive stimulus effect during a surgical procedure.
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