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Individualized PID control of depth of anesthesia based on patient model identification during the induction phase of anesthesia

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4 Author(s)
Soltesz, K. ; Dept. of Autom. Control, Lund Univ., Lund, Sweden ; Jin-Oh Hahn ; Dumont, G.A. ; Ansermino, J.M.

This paper proposes a closed-loop propofol admission strategy for depth of hypnosis control in anesthesia. A population-based, robustly tuned controller brings the patient to a desired level of hypnosis. The novelty lies in individualizing the controller once a stable level of hypnosis is reached. This is based on the identified patient parameters and enhances suppression of output disturbances, representing surgical stimuli. The system was evaluated in simulation on models of 44 patients obtained from clinical trials. A large amount of improvement (20 - 30%) in load suppression performance is obtained by the proposed individualized control.

Published in:

Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on

Date of Conference:

12-15 Dec. 2011