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Published on: December 6, 2016
Evaluation of SLOG/TCI-III pediatric system on target control infusion of propofol
Wan-hua Yang1, Hong-bin Gu, Bing Chen
1Department of Pharmacy, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China. yangwanhuaywh@sina.com
Insights
The SLOG/TCI-III system for propofol infusion in children shows acceptable performance. This target-controlled infusion system demonstrated a median performance error (MDPE) of 10% and median absolute performance error (MDAPE) of 22%.
Area of Science:
- Anesthesiology
- Pharmacokinetics
- Pediatric Medicine
Background:
- The SLOG/TCI-III system is a target-controlled infusion model adapted for pediatric propofol administration.
- Previous models were based on local pediatric populations.
Purpose of the Study:
- To evaluate the performance of the SLOG/TCI-III system in children.
- To assess the accuracy of propofol concentration measurements against target concentrations.
Main Methods:
- Thirty pediatric patients (ASA I-II) were studied.
- Propofol target plasma concentrations were entered into the SLOG/TCI-III system.
- Measured propofol concentrations were analyzed using high-performance liquid chromatography with fluorescence detection.
- Performance error (PE), median performance error (MDPE), median absolute performance error (MDAPE), and Wobble were calculated.
Main Results:
- A strong linear correlation was observed between measured and target propofol concentrations (r = 0.8667).
- The pediatric system achieved an MDPE of 10% and an MDAPE of 22%.
- The median Wobble was 24%.
Conclusions:
- The SLOG/TCI-III system demonstrates performance within accepted clinical practice limits for pediatric anesthesia.
- The system's accuracy supports its use in pediatric target-controlled propofol infusion.
Background:
The target-controlled infusion-III (SLOG/TCI-III) system was derived from a model set up by the local pediatric population for target control infusion of propofol.
Methods:
The current study aimed at evaluating the difference between target concentrations of propofol and performance, which was measured using the SLOG/TCI-III system in children. Thirty children fulfilling the I-II criteria according to American Society of Anesthesiology were enrolled in the study. The target plasma concentration of propofol was fed into the SLOG/TCI-III system and compared with the measured concentrations of propofol. Blood samples were collected and analyzed by high performance liquid chromatography with fluorescence detector. The performance error (PE) was determined for each measured blood propofol concentration. The performances of the TCI-III system were determined by the median performance error (MDPE), the median absolute performance error (MDAPE), and Wobble (the median absolute deviation of each PE from the MDPE), respectively.
Results:
Concentration against target concentration showed good linear correlation: concentration = 1.3428 target concentration - 0.2633 (r = 0.8667). The MDPE and MDAPE of the pediatric system were 10 and 22%, respectively, and the median value for Wobble was 24%. MDPE and MDAPE were less than 15 and 30%, respectively.
Conclusions:
The performance of TCI-III system seems to be in the accepted limits for clinical practice in children.
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