Improving regulation of mean arterial blood pressure during anesthesia through estimates of surgery effects.
IEEE Trans Biomed Eng
; 47(11): 1456-64, 2000 Nov.
Article
em En
| MEDLINE
| ID: mdl-11077739
ABSTRACT
In this paper, a scheme for improvement of the regulation of mean arterial blood pressure (MAP) during anesthesia based on model predictive control (MPC) and estimates of the effects of disturbances (surgical events) is proposed. A linear model for the combined effects of surgical stimulations and volatile anesthetics on MAP is derived from experimental data. Based on it the potential improvement in blood pressure regulation is evaluated via a simulation study. The simulation study shows that when information about the effect of the surgical events on MAP is utilized by the controller maximum MAP deviations can be reduced by as much as 50% even when this information is inaccurate. At worst, (highly inaccurate information) no improvement is obtained.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Procedimentos Cirúrgicos Operatórios
/
Pressão Sanguínea
/
Anestesia
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article