PMID: 16634417Apr 26, 2006Paper

Entropy

Best Practice & Research. Clinical Anaesthesiology
Berthold Bein

Abstract

The concept of entropy, originally derived from thermodynamics, has been successfully applied to EEG analysis. Various entropy algorithms have been used in clinical studies, but until now a commercially available monitor exists only for spectral entropy. By calculating two distinct values for the EEG dominated part of the spectrum (state entropy, SE) and the total spectrum (response entropy, RE), the M-Entropy module claims to provide useful information regarding the cortical state of the patient as well as an indirect measure of adequacy of analgesia. Generally, entropy has been studied for quantification of anaesthetic drug effect for various GABA-ergic i.v. induction agents and volatile anaesthetics like propofol and sevoflurane and overall was found comparable to the current clinical gold standard bispectral index (BIS). Entropy guidance may not be used during ketamine or nitrous oxide administration, since there is no reliable correlation to the patient's state of consciousness. The usefulness of RE as a surrogate for increased EMG activity due to painful stimulation has not been proven so far.

Associated Clinical Trials

References

Jan 1, 1996·Anesthesiology·W D SmithN T Smith
Oct 20, 1998·Anesthesiology·I J Rampil
Jan 15, 2004·British Journal of Anaesthesia·R E Anderson, J G Jakobsson
Jun 12, 2004·British Journal of Anaesthesia·V Jäntti, S Alahuhta

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Citations

Oct 15, 2013·Journal of Clinical Monitoring and Computing·Ankur Sharma Chandralekha
Sep 14, 2012·TheScientificWorldJournal·Xinzhong ChenBerthold Bein
Sep 4, 2010·IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society·Dan ChenXiaoli Li
Mar 6, 2015·Frontiers in Computational Neuroscience·Zhenhu LiangXiaoli Li
Jan 23, 2013·Anesthesiology·Tarek El HorJavad Bidgoli
Mar 10, 2016·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Jonathan A N FisherCristin G Welle
Apr 21, 2012·Laboratory Animals·Aura Silva, Luis Antunes
Jan 23, 2017·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Eric AzabouTarek Sharshar
Jan 15, 2014·Clinical EEG and Neuroscience·Nicolas MarchantVincent Bonhomme
Mar 13, 2014·Paediatric Anaesthesia·Stephen McKeeverAndrew J Davidson
Jul 12, 2008·International Anesthesiology Clinics·Anthony G Hudetz
May 5, 2007·Current Opinion in Anaesthesiology·Andrew J Davidson
Dec 2, 2009·Current Opinion in Anaesthesiology·Leon Serfontein
Aug 30, 2012·Journal of Neural Engineering·Demitre SerletisPeter L Carlen
Dec 12, 2012·Medical & Biological Engineering & Computing·Jun ShiFei Wang
Jul 30, 2014·Asian Pacific Journal of Tropical Medicine·Tian-Ning Li, Yan Li
Jan 26, 2018·Anesthesia and Analgesia·Thomas W L ScheerenMatthias Heringlake
Dec 27, 2018·Journal of Neurosurgical Anesthesiology·Nitin ManoharKartik M Multani
Sep 15, 2020·United European Gastroenterology Journal·Jakob GarbeJonas Rosendahl
Mar 29, 2011·The Tohoku Journal of Experimental Medicine·Noriko OhisaKatsumi Yoshida
Apr 4, 2017·Korean journal of anesthesiology·Junggun AnnSang-Jin Park
Jan 22, 2013·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·François Moreau-BussièreEtienne de Médicis
Aug 19, 2014·Acta Anaesthesiologica Scandinavica·J Raeder
Jan 23, 2021·Neuroinformatics·Joaquim MassanaBeatriz López
May 26, 2021·Aesthetic Surgery Journal·Bilsev InceMehmet Dadaci

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