A model-predictive hypnosis control system under total intravenous anesthesia
| Autor: | Eiko Furutani, Kazuhiko Fukuda, Y. Sawaguchi, Gotaro Shirakami, Mituhiko Araki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Adult
Male Hypnosis hypnosis control system Adolescent Consciousness Anesthetics General Biomedical Engineering Anesthesia General In Vitro Techniques Electroencephalography Models Biological Feedback model-predictive control medicine Humans Computer Simulation Aged Aged 80 and over medicine.diagnostic_test propofol business.industry Middle Aged Drug Therapy Computer-Assisted Clinical trial bispectral index (BIS) Intravenous anesthesia Bispectral index Anesthesia Ambulatory Anesthetic Female Drug Monitoring Propofol business medicine.drug |
| Zdroj: | IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING. 55(3):874-887 |
| ISSN: | 0018-9294 |
| Popis: | In ambulatory surgery, anesthetic drugs must be administered at a suitable rate to prevent adverse reactions after discharge from the hospital. To realize more appropriate anesthesia, we have developed a hypnosis control system, which administers propofol as an anesthetic drug to regulate the bispectral index (BIS), an electroencephalography (EEG)-derived index reflecting the hypnosis of a patient. This system consists of three functions: 1) a feedback controller using a model-predictive control method, which can adequately accommodate the effects of time delays; 2) a parameter estimation function of individual differences; and 3) a risk control function for preventing undesirable states such as drug overinfusion or intraoperative arousal. With the approval of the ethics committee of our institute, 79 clinical trials took place since July 2002. The results show that our system can reduce the total amount of propofol infusion and maintain the BIS more accurately than anesthesiologist's manual adjustment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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