An interventional study of Sevoflurane and Isoflurane in General Anesthesia, sponsored by Ludwig-Maximilians - University of Munich. Status unknown at 4 sites in Germany. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2010-07-30.
Sponsored by Ludwig-Maximilians - University of Munich · Not applicable, Interventional, and Supportive care
The ability of Mid Latency Auditory Evoked Potentials for a routine monitoring of sensory suppression should be evaluated during a wide spectrum of clinically common forms general anesthesia.
Up to now there is no fully functional and precise technique for accurate assessment for monitoring the degree of unconsciousness during general anaesthesia. Previous studies and results obtained during the project regarding the effect of anaesthetics on single neurons and small neuronal networks indicate that it would be most promising to use a method directly correlating to the integrity of the relevant functional systems. As one goal of the project it was formulated to develop and test a new system for recording and analysis of mid latency auditory evoked potentials (MLAEP), suitable to be used in the clinical surrounding of an operation theatre. Step by step an investigational system was developed, that after obtaining legal approvement was functional in a broad spectrum of cases. In a multicenter study the including 4 clinical centres and 426 patients the reliability of the system was proved. Even under the hard conditions of the OR the apparatus was able to record the signals with sufficient reliability and precision. A clear correlation of MLAEP parameters with clinically defined states of consciousness could be identified. Differences in the effect of the used combinations of general anaesthetics and opioids were identified. An algorithm for automatic analysis of the signals was developed, to allow users with limited knowledge of interpretation of MLAEP signals to use them for monitoring anaesthesia.
Ludwig-Maximilians - University of Munich is the lead sponsor of 218 studies on the registry; 29 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Intraoperative signs of inadequate anesthesia
Postoperative recall of events
MLAEP parameters
This study is status unknown, as verified in Feb 2007. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Ludwig-Maximilians - University of Munich