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    Quantifying uncertainty bounds in anesthetic PKPD models.

    Source

    Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada.

    Abstract

    A major challenge faced when designing controllers to automate anesthetic drug delivery is the large variability that exists between and within patients. This intra- and inter-patient variability have been reported to lead to instability. Hence, defining and quantifying uncertainty bounds provides a mean to validate the control design, ensure its stability and assess performance. In this work, the intra- and inter-patient variability measured from thiopental induction data is used to define uncertainty bounds. It is shown that these bounds can be reduced by up to 40% when using a patient-specific model as compared to a population-normed model. It is also shown that identifying only the overall static gain of the patient system already decreases significantly this uncertainty.

    PMID:
    17271795
    [PubMed]

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