Spinal Diseases
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients aged 18-65 who underwent elective spinal canal surgery under general anesthesia (other electrophysiological monitoring was required at the same time) were selected. ASA I~III, BMI<30kg/cm2, visual function was normal, and informed consent was signed.
Exclusion criteria
Exclusion criteria: Patients with visual impairment; Patients with severe liver and kidney disease; Uncontrolled hypertension, diabetes, severe arrhythmia or unstable angina; Mentally ill or unable to communicate; Abuse of analgesics and history of drug abuse; Silicone allergy; Reject visual evoked potential monitoring.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Amplitudes of N145-P100; | — |
Secondary
| Measure | Time frame |
|---|---|
| latencies of N145-P100;BIS values;Blood pressure;Heart rate;blood loss;hemoglobin;hematocrit;temperature; | — |
Countries
China
Contacts
Beijing Tiantan Hospital, Capital Medical University