Effects of Lidocaine Bolus and Infusion on Bispectral Index Values and Spectrum During Anesthesia Maintenance

Lidocaine has been shown to increase the hypnotic effects of Propofol, however no trials shows the effects on Bispectral Index Values (BIS) and spectral analysis during total intravenous anesthesia maintenance delivered with target controlled infusion (TCI) with stable Concnetration at the effector site of Propofol (CeP)

Lidocaine has been shown to increase the hypnotic effects of Propofol, however no trials shows the effects on Bispectral Index Values (BIS) and spectral analysis during total intravenous anesthesia maintenence delivered with target controlled infusion (TCI) with stable concentration at the effector site of Propofol (CeP). Aim of this study is to analyze BIS values and power spectrum before and after a lidocaine bolus (1,5 mg/kg delivered in 10 minutes) and a subsequent continuous infusion (1,5 mg/kg/min for 30 minutes) delivered at anesthetist's discretion for postoperative analgesia.