Clinical Effects of Different Ventilation Strategies in Rigid Bronchoscopy Procedures

This study compares the effects of different ventilation strategies on patient safety and respiratory parameters during rigid bronchoscopy procedures. It enrolls patients undergoing the procedure at Qingdao University Affiliated Hospital, aiming to identify the optimal ventilation mode to reduce complications.

Inclusion Criteria: * Patients scheduled for elective interventional rigid bronchoscopy, who agree to participate in this study and have no contraindications to anesthesia. Exclusion Criteria: * History of allergic reaction to anesthetic agents; * Pregnancy; * Severe dysfunction of the heart, lung, liver, kidney or other vital organs; * Cognitive impairment or neurological diseases; * Contraindications to succinylcholine (e.g., hyperkalemia, extensive burns, severe trauma, crush injury, spinal cord injury, paraplegia, hemiplegia, myasthenia gravis, etc.); Refusal to participate in this study by the patient or their family members.