Effects of Flumazenil on Recovery After Total Intravenous Anesthesia With Remimazolam

During induction, patients 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 combined with remifentanil. When procedure ends, infusion remimazolam stops and 0.3mg of flumazenil according to allocated groups.

During induction, patients 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 combined with remifentanil. When procedure ends, infusion remimazolam stops and 0.9% normal saline according to allocated groups.