The Narcotrend monitor

Kreuer, Sascha; Wilhelm, Wolfram

doi:10.1016/j.bpa.2005.08.010

Cited by 108 publications

(85 citation statements)

References 11 publications

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“…The Narcotrend was developed at the University Medical School Hannover, Germany, and has received US Food and Drug Administration approval [4]. Narcotrend EEG processing leads to a variable called the Narcotrend Index (NI), a dimensionless number on a scale from 0 indicating very deep hypnosis to 100 indicating wakefulness (see Table 1).…”

Section: Introductionmentioning

confidence: 99%

Measuring depth of sedation in intensive care patients with the electroencephalographic Narcotrend Index

Weber

Steinberger

Ritzka

et al. 2008

European Journal of Anaesthesiology

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Section: Introductionmentioning

confidence: 99%

Measuring depth of sedation in intensive care patients with the electroencephalographic Narcotrend Index

Weber

Steinberger

Ritzka

et al. 2008

European Journal of Anaesthesiology

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“…Clinical signs are diffi cult to measure, aside from blood pressure and heart rate. Moreover, the interaction between surgery and anesthesia complicates clinical signs, which adds further diffi culty to the monitoring of anesthesia depth [13][14] . Clinical signs vary among patients because they present different responses to surgery and anesthesia, which may result in deep or light anesthesia.…”

Section: Discussionmentioning

confidence: 99%

“…The Narcotrend monitor has some advantages. It has two channels: one is used for EEG monitoring during general anesthesia, and the other to compare the statuses of two hemispheres [17][18][19][20] . Anesthesia depth monitoring with the Narcotrend monitor has no infl uence on the heart surgery in the presence of CPB, but BIS may affect the CPB.…”

Section: Discussionmentioning

confidence: 99%

Aplicação do monitor Narcotrend® para avaliar a profundidade da anestesia em crianças submetidas à cirurgia cardíaca: estudo prospectivo e controlado

Jiang

Qiao

et al. 2013

Rev. Bras. Anestesiol.

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Background and objectives: To investigate the clinic effectiveness, safety and feasibility of Narcotrend® monitor for evaluation of depth of anesthesia in congenital heart disease (CHD) infants undergoing cardiac surgery. Methods: A total of 80 infants receiving general anesthesia in selective surgery were randomly selected. Infants were assigned into two groups (n = 40 per group). In the Narcotrend group, the depth of anesthesia was monitored with the Narcotrend monitor. In the standard group, the depth of anesthesia was controlled according to the experience. The mean arterial pressure (MAP) and heart rate (HR) were determined, as well as the dose of fentanyl, muscle relaxant, recovery time and extubation time were recorded. Results: In both groups, vital signs were stable during the surgery. When compared with the standard group, the MAP and HR were more stable, the total dose of fentanyl and muscle relaxant were signifi cantly reduced and the recovery time and extubation time were markedly shortened in the Narcotrend group. Conclusion: The application of Narcotrend monitor was benefi cial to the control of the depth of anesthesia in CHD infants receiving total intravenous anesthesia, in which small amount of narcotics can achieve optimal anesthesia. Moreover, the recovery time and extubation time are reduced and the harmful consequence such as intraoperative awareness can be avoided.

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“…For surgical anesthesia, anesthetics are administered so that patients are maintained in the D and E stages [21]. In addition, the Narcotrend index can be used for calculations: the index is 100-0, and general anesthesia is within the range of 64-0.…”

Section: Eeg-based Monitors Of Depth Of Anesthesiamentioning

confidence: 99%

Current Status of EEG-Based Depth-of-Consciousness Monitoring During General Anesthesia

Musialowicz

Lahtinen

2014

Curr Anesthesiol Rep

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Monitoring the level of consciousness during general anesthesia with processed electroencephalogram (EEG) monitors has become an almost routine practice in the operating room, despite ambiguous research results regarding its potential benefits. For the patient as well as the anesthesiologist, the primary concern with respect to general anesthesia is that there will be a lack of awareness and recall during surgery. Using EEG signals to monitor the depth of anesthesia should reduce the incidence of intraoperative awareness, lead to a reduction in drug consumption, prevent anesthesia-related adverse events, and enable faster recovery. These benefits have been associated with depth-of-anesthesia monitoring in small clinical trials, but larger studies of EEG-based monitoring have failed to confirm the results of the smaller studies. The results of recent studies that investigated the emergence of consciousness after general anesthesia and the mechanism of action of anesthetic drugs on the central nervous system may help us to understand the limitations of EEG-based monitors and why they do not perform better in large clinical trials. In this article, we review the current status of monitoring the hypnotic component of general anesthesia and discuss the results of recent studies and guidelines that pertain to depth-of-anesthesia monitoring.

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The Narcotrend monitor

Cited by 108 publications

References 11 publications

Measuring depth of sedation in intensive care patients with the electroencephalographic Narcotrend Index

Measuring depth of sedation in intensive care patients with the electroencephalographic Narcotrend Index

Aplicação do monitor Narcotrend® para avaliar a profundidade da anestesia em crianças submetidas à cirurgia cardíaca: estudo prospectivo e controlado

Current Status of EEG-Based Depth-of-Consciousness Monitoring During General Anesthesia

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