Regelkreisgesteuerte Narkosetiefe bei Propofolapplikation

Autor: Gabriele Nöldge-Schomburg, M. Janda, Ralf Kähler, R. Hofmockel, J. Bajorat, B. Pohl, O. Simanski
Rok vydání: 2010
Předmět:
Zdroj: Der Anaesthesist. 59:621-627
ISSN: 1432-055X
0003-2417
DOI: 10.1007/s00101-010-1731-9
Popis: BACKGROUND The objective of this study was to evaluate the performance of a new system for closed-loop control of propofol administration using the bispectral index (BIS) under total intravenous anesthesia in the index values of middle-to-deep depth of anaesthesia. METHODS In this study 20 adult patients anesthetized with propofol and remifentanil were investigated. The propofol infusion was carried out using a fuzzy-PD+I controller with a target BIS value of 40. RESULTS Closed-loop control was able to provide maintenance of anesthesia and adequate operating conditions for all patients. The following quality control criteria were calculated: median performance error (MDPE; 0.16%, SD +/-1.4%), median absolute performance error (MDAPE; 6.9%, SD +/-2.8%) and wobble (6.8%, SD +/-2.5%). CONCLUSION The present study showed the clinical feasibility of the controller compared to existing devices regarding a high level of quality criteria of a model with an implemented fuzzy-PD+I structure controlling depth of hypnosis.
Databáze: OpenAIRE
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