Nov 6, 2023 · Assess bispectral index values alongside patient responses and physiological indicators to fine-tune anesthesia levels and ensure patient comfort and safety.

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

The BIS™ monitor provides a direct measure of the effects of sedatives on the brain. In the critical care setting, the BIS monitor is commonly used to allow objective assessment of sedation during: • Mechanical ventilation • Barbiturate coma • Bedside procedures • Neuromuscular blockade

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 …

The lower end (BIS = 0) is defined as an isoelectric EEG record [7, 12]. The optimal BIS range of standard surgical anaesthesia falls between 40 and 60 [7, 12–14]. This range can be divided into low (<50) and high (≥50) BIS levels.

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.

Feb 10, 2025 · The Bispectral Index (BIS) monitor is essential in anesthesia and intensive care settings, providing real-time insights into a patient’s consciousness level. It helps tailor anesthetic dosages, enhancing patient safety and recovery.

BIS values consistent with the anesthetic drug and dose administration should reflect adequate cerebral perfusion and function. Abnormally low or a sudden deterioration in BIS values probably indicate cerebral hypoperfusion and should be taken seriously.

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.

Typically, BIS values range from 40 to 55 during general anesthesia [1]. Some studies have investigated the changes in BIS that occur during sedation [3,4], but none have investigated how the BIS is affected by natural sleep. Therefore, we describe a small descriptive case series.