A compact fractional-order model for hypnosis in general anesthesia

被引:0
作者
Mihai, Marcian [1 ,2 ]
Birs, Isabela [1 ]
Erwin, Hegedus [1 ]
Copot, Dana [2 ]
De Keyser, Robain [2 ]
Ionescu, Clara M. [1 ,2 ]
Muresan, Cristina I. [1 ]
Neckebroek, Martine [3 ]
机构
[1] Tech Univ Cluj Napoca, Dept Automat, Cluj Napoca, Romania
[2] Univ Ghent, Dept Electromech Syst & Met Engn, Res Grp Dynam Syst & Control, Tech Lane Sci Pk 125, B-9052 Ghent, Belgium
[3] Ghent Univ Hosp, Dept Anesthesia, C Heymanslaan 10, B-9000 Ghent, Belgium
来源
IFAC PAPERSONLINE | 2024年 / 58卷 / 12期
基金
欧洲研究理事会;
关键词
drug dosing; anesthesia; closed loop control of anesthesia; fractional-order impedance; hypnosis; modelling; CALCULUS;
D O I
10.1016/j.ifacol.2024.08.166
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The research field of clinical practice has witnessed a notable increase in the integration of information technology and control systems engineering tools and the paradigm of drug dosing management for general anesthesia is no exception. Progressing from adequate to optimal drug dosing requires suitable models for closed loop control algorithms. High order, complex parameterized models for hypnosis are available but as one cannot measure real drug concentrations, accurate modelling is not possible. Moreover, ethical limitations impose serious restrictions as to the type of excitatory signals acceptable to patient effect response evaluations. This paper proposes an innovative approach to determine fractional order models to compactly represent the dynamics inherent to the hypnosis response. A simplifying assumption is being made: instead of multi -compartmental models, a single transfer model is proposed consisting of a fractional-order dynamic that directly connects Propofol, the administered drug, and the Bispectral (BIS) index, the measure of hypnosis. The proposed model is validated against clinical data and compared to integer order models to prove its suitability. Results suggest the model may be well used with control algorithms for computerized drug dosing management. Copyright (c) 2024 The Authors. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/)
引用
收藏
页码:55 / 60
页数:6
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