The Effects of Using Different Anesthetics on the Prognosis of Primary Lung Tumors and Its Mechanism of Action

This study investigates whether the type of anesthesia used during lung cancer surgery affects long-term outcomes such as cancer recurrence and survival. Researchers are collecting data from patients who underwent surgery to compare different anesthetic approaches. **You may be eligible if...** - You are 18–80 years old - You have a primary lung tumor being removed with planned thoracic (chest) surgery under general anesthesia - Your surgery is elective (scheduled in advance, not an emergency) - You are in ASA health class I, II, or III **You may NOT be eligible if...** - You have a mental disorder - You have significant liver problems - You are pregnant or breastfeeding - You are severely obese - You are allergic to any of the medications used in this study - This is a repeat surgery for a recurring tumor - Your tumor was found to be benign, a metastasis from another cancer, or the surgery was for biopsy only - You received another cancer treatment (like chemotherapy) before surgery - Your surgery was changed to palliative (non-curative) during the operation Talk to your doctor to see if this trial is right for you.