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A computer designed graph for administration of atracurium by i.v. infusion
1Department of Anaesthesia, Falkirk and District Royal Infirmary.
British Journal of Anaesthesia
|December 1, 1990
Summary
A new computer model created a guidance graph for atracurium infusions, simplifying anesthetic drug administration. This tool helps maintain optimal muscle relaxation during surgery without needing dose adjustments.
Area of Science:
- Anesthesiology
- Pharmacokinetics
- Mathematical Modeling
Background:
- Atracurium infusions are crucial for maintaining neuromuscular blockade during surgery.
- Optimizing infusion rates and predicting recovery can be challenging.
Purpose of the Study:
- To develop a mathematical model and guidance graph for atracurium infusions.
- To simplify the management of neuromuscular blockade during anesthesia.
Main Methods:
- A bi-exponential mathematical computer model was utilized.
- The model incorporated variable infusion rates, pharmacokinetic parameters, and effect thresholds.
- Systematic experiments identified a relationship between recovery rate and initial infusion rate.
Main Results:
- A guidance graph (ready reckoner) was developed based on experimental findings.
- In 50 anesthetics, 39 patients achieved optimal myoneural block without adjustments.
- The guidance graph facilitated consistent blockade for an average of 59 minutes.
Conclusions:
- The developed guidance graph effectively simplifies atracurium infusion management.
- This tool aids in maintaining optimal neuromuscular blockade for surgical procedures.
- Mathematical modeling offers a valuable approach to optimizing anesthetic drug administration.