Comparison of Hemodynamic Stability During Anesthesia Using Remimazolam and Sevoflurane in Minimally Invasive AVR

During induction, patients allocated to the remimazolam group will receive remimazolam 6mg/kg/h with remifentanil TCI 1\~4 nanogram/mL. After patient loses consciousness, anesthesia will be maintained with remimazolam 1-2mg/kg/h combied with remifetanil.

During induction, patients allocated to the P/S group will receive propofol 1% 1-2mg/kg with remifentanil TCI 1\~4 nanogram/mL. After patient loses consciousness, anesthesia will be maintained with sevoflurane and remifentanil.