Key result
Servo-controlled closed-circuit anesthesia accurately estimates uptake and controls end-tidal halothane concentration to within ~0.1%.
Why the study?
A method for automatic control of anaesthesia using a volatile agent in oxygen was developed to improve maintenance of end-tidal anaesthetic concentrations.
Does a servo-controlled closed-circuit anaesthesia system accurately control end-tidal concentration of volatile anaesthetic agents in clinical subjects?
Population
12 clinical subjects and laboratory testing
Comparison
Servo-controlled closed-circuit anaesthesia vs manual control
Design
Other study type with closed-loop servo system testing
Authors
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May enable automated volatile delivery systems; leaves open whether precision improves safety or outcomes in practice.
Does a servo-controlled closed-circuit anaesthesia system accurately control end-tidal concentration of volatile anaesthetic agents in clinical subjects?
A servo-controlled closed-circuit anaesthesia system can accurately maintain end-tidal volatile anaesthetic concentrations to within 0.1%.
Ross et al. (1984) studied Anaesthesia (n=12). Servo-controlled closed-circuit anaesthesia was evaluated on End-tidal halothane concentration control. A servo-controlled closed-circuit anaesthesia system accurately estimated anaesthetic uptake and controlled end-tidal halothane concentration to within 0.1%.
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