Effects of Ciprofol on Myocardial Injury After Non-cardiac Surgery in Video-Assisted Thoracoscopic Surgery

Inclusion Criteria: 1. Scheduled for elective video-assisted thoracoscopic (VATS)-assisted thoracic surgery (lobectomy, segmentectomy, wedge resection of two or more lung tissues, mediastinal tumor resection) under general anesthesia; 2. Aged 45 to 80 years (inclusive) at the time of randomization; 3. Expected postoperative hospital stay of ≥3 days; 4. Signed a written informed consent to participate in the study. Exclusion Criteria: 1. Patients allergic to propofol, Ciprofol, or analogs of drug excipient components (soybeans, eggs, milk); 2. Patients with unstable angina; 3. Patients with congestive heart failure or hemodynamic instability requiring vasopressor agents; 4. Patients with severe COPD (FEV1 \< 1 L); 5. Glomerular filtration rate \[eGFR\] \< 30 mL/min/1.73m²; 6. Patients with severe hepatic dysfunction (ALT or AST elevation exceeding 1.5 times the upper limit of normal); 7. Male or female patients planning to conceive within the next 3 months; 8. Pregnant or lactating female patients;