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Background: Target-controlled infusion (TCI) systems allow the administration of drug to achieve a target blood or site-effect concentration. We determine induction and recovery times and the amount of drug used with TCI systems vs. manual induction. Objective: To determine whether the induction of propofol TCI and manual infusion are two comparable techniques. Methods: A retrospective observational study was conducted in which 62 ASA I-II patients scheduled for elective surgery received induction using TCI or manually. Anaesthetic induction was achieved with remifentanil (0.25 μg/kg/min) and propofol (manual bolus injection: 2 mg/kg, or target blood concentration: 5 μg/ml with the TCI system [Marsh model]) with maintenance doses of remifentanil (0.15 μg/kg/min) and propofol (manually 0.10 mg/kg/min or 2.5-4 μg/ml using the TCI system). In both groups, rocuronium bromide was used (induction and maintenance doses: 0.6 and 0.3 mg/kg, respectively) as was morphine (0.1 mg/kg) 45 min before the end of the surgery. We measured: induction, operative and recovery mean times; bispectral index, heart rate, blood pressure, costs, haemodynamic instability, and intraoperative awareness. A telephone questionnaire was administered 1 month later. Results: The mean induction time was longer in the TCI than the manual group (1.76 ± 0.94 vs. 0.9 ± 0.4 min; P < .001), but the total dose of propofol (TCI: 112.4 ± 60.9 vs. manual: 133.8 ± 80.3 ml, P = .241) tended to be smaller and the recovery time was significantly shorter (TCI: 7.48 ± 3.1 vs. manual: 10.3 ± 4.9 min) (P = .008). Conclusions: Induction with propofol using TCI is similar to manually delivered propofol. [ABSTRACT FROM AUTHOR]

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Copyright of Matronas Profesion is the property of Ediciones Mayo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)