Cerebral Ischemia-Hypoxia Clinical Trial
Official title:
Effect of Medazolam or Dexmedetomidine on Regional Cerebral Oxygen Saturation During Spinal Anesthesia in the Elderly Patients
Compare the changes of regional cerebral oxygen saturation during midazolam or dexmedetomidine sedation for spinal anesthesia in the elderly patients who undergoing femur surgery.
Compare the changes of regional cerebral oxygen saturation during midazolam or dexmedetomidine administration (target bispectrl index 75-80) for spinal anesthesia in the elderly patients over 65 years who undergoing femur surgery. ;