Effect of Ciprofol Infusion for Induction and Maintenance on Hemodynamics and Postoperative Recovery

Inclusion Criteria: * American Society of Anesthesiology (ASA)Ⅰ～Ⅱ grade; * 18-65 years; * Body mass index (BMI) 20-30kg/m2 ; * Scheduled for thoracoscopic lobectomy under general anesthesia; Exclusion Criteria: * Refused to participate in the clinical study; * Predictable airway difficulties requiring awake intubation; * Allergy to the drugs which were used in this study; * Tracheal intubation failed for twice; * Patients with mental diseases or consciousness disorder; * long-term use of sedatives or Antidepressants; * Patients who are participating in other clinical studies.