Nov 6, 2023 · Monitoring the depth of anesthesia is a critical aspect of ensuring patient safety during medical procedures. The bispectral index (BIS) monitor is pivotal in this process. Maintaining BIS values within the range of 40 to 60 is essential to prevent anesthesia awareness and mitigate potential long-term psychological consequences.

The BIS™ value is used in a variety of settings, including anesthesia, critical care and procedural sedation, to provide objective information about an individual patient’s response to sedative drugs.

Bispectral index (BIS) is one of several technologies used to monitor depth of anesthesia. BIS monitors are used to supplement Guedel's classification system for determining depth of anesthesia.

Dec 31, 2019 · A BIS value of 0 represents persistently suppressed EEG activity, and 100 indicates the fully awake state. A target range between 40 and 60 is the proposed range in which patients have a lower risk of experiencing intraoperative awareness with …

Jul 7, 2024 · the resulting algorithm generates a bispectral index (BIS) it has been validated on healthy and now other patient populations; COMPLICATIONS. Benefits. BIS < 60 results in very low levels of post-op recall; shown to lower anaesthetic consumption; slightly quicker awaking; safe with diathermy and defibrillation; Problems

Jul 21, 2009 · Higher values indicate a more awake, or more conscious patient, and lower BIS values indicate a decreased level of consciousness. A value of zero indicates a lack of cortical or brain activity (see Getting down to BIS-ness).

In patients who are awake, a typical BIS score is 90 to 100. Complete suppression of cortical activity results in a BIS score of 0, known as a flat line. Lower numbers indicate a higher hypnotic effect. Overall, a BIS value below 60 is associated with a …

Jul 18, 2019 · Bispectral Index (BIS) is a proprietary signal-processed EMG and EEG monitor used to estimate depth of anaesthesia. The BIS outputs four values: Dimensionless index between 0 and 100 which gives an indication of the accuracy of the BIS value. Gives an indication of the influence of muscle activity on BIS values.

BIS™ monitoring value — a processed EEG parameter — is calculated as a rolling average using a moving window of time. This “smoothing” is necessary to prevent excessive fluctuations.

Bispectral (BIS) index monitoring is a noninvasive, objective method of determining level of consciousness using a series of continuous electroencephalogram (EEG) parameters.