Narcotrend® and Bispectral index® monitor are superior to classic electroencephalographic parameters for the assessment of anesthetic states during propofol-remifentanil anesthesia

A new electroencephalogram monitor, the Narcotrend, was developed to measure anesthetic depth. The authors compared the Narcotrend, the Bispectral Index, and classic electroencephalographic and hemodynamic parameters during anesthesia with propofol and remifentanil. The authors investigated 25 patie...

Full description

Saved in:
Bibliographic Details
Published in:Anesthesiology (Philadelphia) 2003-11, Vol.99 (5), p.1072-1077
Main Authors: SCHMIDT, Gunter N, BISCHOFF, Petra, STANDL, Thomas, JENSEN, Kai, VOIGT, Moritz, AM ESCH, Jochen Schulte
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Anesthesia
Anesthesia, Intravenous
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Anesthetics, Intravenous
Biological and medical sciences
Electrodiagnosis. Electric activity recording
Electroencephalography - drug effects
Electroencephalography - instrumentation
Female
Fentanyl
General anesthesia. Technics. Complications. Neuromuscular blocking. Premedication. Surgical preparation. Sedation
Hemodynamics - drug effects
Humans
Investigative techniques, diagnostic techniques (general aspects)
Laminectomy
Linear Models
Male
Medical sciences
Middle Aged
Monitoring, Intraoperative - instrumentation
Nervous system
Propofol
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new electroencephalogram monitor, the Narcotrend, was developed to measure anesthetic depth. The authors compared the Narcotrend, the Bispectral Index, and classic electroencephalographic and hemodynamic parameters during anesthesia with propofol and remifentanil. The authors investigated 25 patients undergoing laminectomy at different anesthetic states: awake, steady state anesthesia, first reaction during emergence, and extubation. Narcotrend value; BIS; relative power (percent) in delta, theta, alpha, and beta; median frequency; spectral edge frequency; and hemodynamic parameters were recorded simultaneously. The ability of the classic and processed electroencephalographic and hemodynamic parameters to predict the clinically relevant anesthetic states of awake, steady state anesthesia, first reaction, and extubation was tested using prediction probability. Only the Narcotrend was able to differentiate between awake versus steady state anesthesia and steady state anesthesia versus first reaction/extubation with a prediction probability value of more than 0.90. Modern electroencephalographic parameters, especially Narcotrend, are more reliable indicators for the clinical assessment of anesthetic states than classic parameters.
ISSN:0003-3022
1528-1175
DOI:10.1097/00000542-200311000-00012