What is BIS? (Article)
BIS - Bispectral Index: is the measurement of the depth of anesthesia for a patient.
Monitoring the depth of anesthesia is very important during any procedure, as anesthesia that is too deep can cause hemodynamic changes. The most common method of monitoring depth of anesthesia is the Bispectral Index (BIS), which uses an electroencephalograph (EEG) to measure the electrical activity of the brain. The BIS monitor is placed on the patient's forehead and measures the electrical activity of the brain in real time. The BIS values range from 100 (awake) to 0 (unconscious). The anesthesia provider will adjust the depth of anesthesia based on the BIS values, as well as other factors such as heart rate, blood pressure, and respiratory rate. Anesthesia that is not deep enough could lead to recall or awareness during anesthesia.
BIS values are monitored throughout the surgery to ensure that the patient remains in an adequate state of anesthesia. If the BIS value drops below 40, the anesthesia may be too deep and the patient may be at risk for awareness. In this case, the anesthesiologist may need to adjust the anesthesia. The ideal readings are between 40 and 60 to ensure adequate anesthesia. BIS monitoring involves the application of four electrodes on the forehead. The electrodes are placed on the forehead so that they can detect the electrical activity of the brain. The electrical activity of the brain is used to determine the level of consciousness of the patient. The level of consciousness is determined by the amount of electrical activity in the brain. The more electrical activity there is in the brain, the more conscious the patient is. The less electrical activity there is in the brain, the less conscious the patient is.
It is also important to consider the quality of the reading.The signal-quality-index (SQI) bar is a great predictor of the reliability of the signal. The higher the SQI, the more reliable is the BIS number. This is because the SQI takes into account many factors that can affect the quality of the signal, such as the strength of the signal, the amount of interference, and the amount of noise.
The BIS monitor is the first method that is FDA approved to assess the hypnotic effects of drugs. The BIS monitor is a device that measures brain activity and provides a measure of the depth of anesthesia. The BIS monitor has been shown to be a reliable and valid measure of the hypnotic effects of drugs. The BIS monitor is a useful tool for clinicians to use to assess the depth of anesthesia and to titrate the dose of anesthesia.
Monitors like theGE Carescape B450are excellent monitors for BIS monitoring and anesthesia environments. Additionally, theMasimo Root 7with Sedline offer the latest in Patient State Index (PSi).
Avobus Equipment has multiple brands Patient Monitors and carries all accessories and supplies to ensure the successful use of your unit. If you don't see what you are looking for, give us a call (800) 674-3655 or email us info@avobus.com
