bispectral index


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bispectral index

a measure derived from the domain of time; the frequency and bispectral analysis of the encephalogram that correlates with depth of sedation and anesthesia in clinical medicine.

bispectral index

A measure of the depth of anaesthesia, which is used to titrate the dose of anaesthetic to prevent unintentional regain of consciousness, especially in patients receiving muscle relaxants to prevent movement, who may not provide visual cues indicating pain.

bi·spec·tral in·dex

(bī-spek'trăl in'deks)
A measure derived from the domain of time; the frequency and bispectral analysis of the encephalogram that correlates with depth of sedation and anesthesia in clinical medicine.

bispectral index

Abbreviation: BIS
An electroencephalographic measure of the effect of sedative and hypnotic drugs on an anesthetized patient. It is used (along with clinical assessment of the patient) to determine the level of central nervous system depression. The index ranges from zero (completely unresponsive to stimulation) to 100 (awake and alert). At levels below 60, most patients are adequately sedated for surgery.
See also: index
References in periodicals archive ?
Study Purpose: To determine correlation and predictive value between data obtained with the bispectral index (BIS) and diagnostic electroencephalogram (EEG) in determining degree of burst suppression during drug-induced coma.
2001), Monitoring depth of sedation in surgical ICU patients with Bispectral Index.
Agitation and changes of Bispectral Index and electroencephalographic-derived variables during sevoflurane induction in children: clonidine premedication reduces agitation compared with midazolam.
Is the bispectral index appropriate for monitoring the sedation level of mechanically ventilated surgical ICU patients?
Closed-loop control of anesthesia using bispectral index, performance assessment in patients undergoing major orthopedic surgery under combined general and regional anesthesia.
Bispectral index in patients with target controlled or manually controlled infusion of propofol.
Impact of bispectral index monitoring on propofol administration in patients undergoing cardiopulmonary bypass.
Bispectral index variations during tracheal suction in mechanically ventilated critically ill patients: Effect of an alfentanil bolus.
Spike-monitoring of anaesthesia for corpus callosotomy using bilateral bispectral index.
Bispectral index monitoring allows faster emergence and improved recovery from propofol, alfentanil, and nitrous oxide anesthesia.
death-feigning behavior, bispectral index, isoflurane, avian, red kite, Milvus milvus