Evaluation of a Novel Closed-loop Propofol and Remifentanil System Guided by Bispectral Index Compared to a TCI Open-loop System

Summary

Closed loop system in intravenous anesthesia is more effective to maintain depth of anesthesia compared with manual system open, it is unclear what driver and variables to achieve this goal be more physiological; in the literature doesn´t exist studies showing that the closed-loop system for both hypnotic and opioid is better than the controlled pharmacokinetic models and open loop system (target controlled infusion-TCI) to maintain anesthetic depth. In addition, the infusion of the opioid lacks physiological controllers in closed loop. Thus, a system was designed for intravenous anesthesia in closed loop for propofol as hypnotic based on neuromonitoring bispectral index as anesthetic depth, and was integrated an additional closed system for remifentanil using hemodynamic variables and control algorithm associated with bispectral index. The purpose of this study is to determine the therapeutic effectiveness of a new system of administration of intravenous anesthesia in closed loop to maintain a depth of anesthesia compared to an open loop system TCI.

Timeline

Start

2015-06

Primary completion

2015-12

Completion

2016-04

Publications

• Background Carregal A, Lorenzo A, Taboada JA, Barreiro JL. [Intraoperative control of mean arterial pressure and heart rate with alfentanyl with fuzzy logic]. Rev Esp Anestesiol Reanim. 2000 Mar;47(3):108-13. Spanish.
• Results Ngan Kee WD, Khaw KS, Ng FF, Tam YH. Randomized comparison of closed-loop feedback computer-controlled with manual-controlled infusion of phenylephrine for maintaining arterial pressure during spinal anaesthesia for caesarean delivery. Br J Anaesth. 2013 Jan;110(1):59-65. doi: 10.1093/bja/aes339. Epub 2012 Sep 25.
• Results Janda M, Simanski O, Bajorat J, Pohl B, Noeldge-Schomburg GF, Hofmockel R. Clinical evaluation of a simultaneous closed-loop anaesthesia control system for depth of anaesthesia and neuromuscular blockade*. Anaesthesia. 2011 Dec;66(12):1112-20. doi: 10.1111/j.1365-2044.2011.06875.x. Epub 2011 Sep 23.
• Results Liu N, Chazot T, Trillat B, Pirracchio R, Law-Koune JD, Barvais L, Fischler M. Feasibility of closed-loop titration of propofol guided by the Bispectral Index for general anaesthesia induction: a prospective randomized study. Eur J Anaesthesiol. 2006 Jun;23(6):465-9. doi: 10.1017/S0265021506000196.
• Results Sakai T, Matsuki A, White PF, Giesecke AH. Use of an EEG-bispectral closed-loop delivery system for administering propofol. Acta Anaesthesiol Scand. 2000 Sep;44(8):1007-10. doi: 10.1034/j.1399-6576.2000.440819.x.
• Results De Smet T, Struys MM, Neckebroek MM, Van den Hauwe K, Bonte S, Mortier EP. The accuracy and clinical feasibility of a new bayesian-based closed-loop control system for propofol administration using the bispectral index as a controlled variable. Anesth Analg. 2008 Oct;107(4):1200-10. doi: 10.1213/ane.0b013e31817bd1a6.
• Results Puri GD, Kumar B, Aveek J. Closed-loop anaesthesia delivery system (CLADS) using bispectral index: a performance assessment study. Anaesth Intensive Care. 2007 Jun;35(3):357-62. doi: 10.1177/0310057X0703500306.
• Results Struys MM, De Smet T, Versichelen LF, Van De Velde S, Van den Broecke R, Mortier EP. Comparison of closed-loop controlled administration of propofol using Bispectral Index as the controlled variable versus "standard practice" controlled administration. Anesthesiology. 2001 Jul;95(1):6-17. doi: 10.1097/00000542-200107000-00007.
• Results Hemmerling TM, Arbeid E, Wehbe M, Cyr S, Taddei R, Zaouter C. Evaluation of a novel closed-loop total intravenous anaesthesia drug delivery system: a randomized controlled trial. Br J Anaesth. 2013 Jun;110(6):1031-9. doi: 10.1093/bja/aet001. Epub 2013 Feb 20.

Drugs

Indications

No indication recorded.