Comparison in Frequency of Hypotension Between Remimazolam and Propofol in Hip Surgery

Inclusion Criteria: * ASA physical status 1-3 * Patients scheduled for hip joint surgery under spinal anesthesia and sedation with propofol or remimzolam Exclusion Criteria: * Patients who refuse to participate in this study * Patients with uncontrolled high blood pressure, hyperthyroidism, dementia in the inability to communicate, or symptomatic coronary artery disease * Patients with an allergy to propofol, fentanyl, or bupivacaine * Patients contraindicated for spinal anesthesia, such as coagulopathy, severe aortic stenosis/mitral stenosis, and active infection on lumbar region * Patients judged to be inappropriate for this study