Study of Burst Suppression Patterns During Anesthesia Induction and Their Effect on Anesthesia Depth Using Bispectral Index Monitoring

What this Trial Is About

This research aims to understand if certain brain activity patterns, specifically burst suppression seen at the beginning of anesthesia, are related to how deep anesthesia stays during surgery. The study focuses on patients undergoing elective surgery with total intravenous anesthesia TIVA and investigates whether those showing burst suppression experience deeper levels of anesthesia. This observational study records brain monitoring data without changing the usual anesthesia care. During surgery, participants will have brain activity monitored using a sensor placed on the forehead called the Bispectral Index BIS monitor, which is commonly used in anesthesia. Patients will be categorized into two groups those who show burst suppression during anesthesia induction and those who do not. The study records BIS values and anesthesia medication doses throughout the procedure to compare these groups. Participants will be observed during their normal anesthesia care without altering treatment. Researchers will collect data on BIS values, anesthesia medication rates, and timing of consciousness changes from induction to emergence. The main outcome measured is the time spent with BIS values below 40 during surgery. Additional measurements include BIS values at loss and return of consciousness and infusion rates of anesthesia drugs. Participation involves no extra procedures beyond standard monitoring, and the study is expected to complete in about one year.

Relationship Between Induction Burst Suppression and Bispectral Index