Clinical Research Directory

Inclusion Criteria: * (1) Aged between 18 and 75 years old (inclusive); (2) ASA (American Society of Anesthesiologists) physical status classification of Class I to III; (3) Body Mass Index (BMI) ranging from 18 to 30 kg/m²; (4) Individuals scheduled to undergo combined gastroscopy and colonoscopy under painless anesthesia; (5) Those with a patent airway and no history of difficult intubation or difficult airway management; (6) Individuals with intact cognitive function, who have provided informed consent, voluntarily participate in this study, and are capable of cooperating to complete data collection. Exclusion Criteria: * （1）A history of unregulated diabetes mellitus, hypertension, or hypotension; （2）Concomitant hyperthyroidism or hypothyroidism; （3）Concomitant psychiatric or neurological disorders; （4）Severe hepatic or renal insufficiency; （5）Concomitant glaucoma, severe hearing or visual impairment that hinders cooperation; （6）Individuals with significant organ dysfunction; （7）Those with allergies to or contraindications for the study drug; （8）Patients with aneurysmal vascular diseases involving the thoracic or abdominal aorta, intracranial arteries, or peripheral arterial vessels; （9）Individuals who are unable to cooperate in completing the Quality of Recovery-15 (QoR-15) questionnaire.