Using Preoperative Anxiety Score to Determine the Total Dose of Butorphanol for Sedation

• Status: Completed
• Trial end date: 2018-12-31
• Target enrollment: 0
• Participant gender: All

Summary

Orthopedic surgeries are considered to be discomfortable and the sense of fear and anxiety of patients who already have preoperative anxiety may be aggravated by intraoperative stimulation, which may contribute to postoperative complications. Previous studies have found that high anxiety predicts increased sedative requirements. Therefore, the investigators explored the relationship between anxiety and intraoperative butorphanol requirements and the investigators evaluated the specific sedative requirement which can keep satisfactory sedative state for patients by preoperative anxiety score

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Shengjing Hospital
• Treatments: Butorphanol

Criteria

Inclusion Criteria:

• American Society of Anesthesiologists (ASA)Ⅰ-Ⅱ

• 18-75 years

• Scheduled for elective low limb orthopaedic procedures under spinal anesthesia

Exclusion Criteria:

• central system disease

• cardiovascular disease

• autonomic nervous system disease

• long term use of analgesic, sedative, and anti-anxiety drugs

• psychosis

• a patient with a language communication disorder not willing to cooperate with the experimenter