“…The study was conducted in the Gastrointestinal Endoscopy Department on January 10, 2021. Inclusion criteria were patients scheduled for gastrointestinal endoscopy who had the American Society of Anesthesiologists (ASA) classification grade I/II [ 8 ] and body mass index (BMI) ≤ 30. Exclusion criteria were patients who had (1) anemia (hemoglobin < 90 g/L), (2) albumin level < 30 g/L, (3) platelet count < 50 × 10 9 /L, (4) anticipated difficult airway, (5) significant respiratory or circulatory dysfunction before gastrointestinal endoscopy, (6) severe neuropsychiatric disorders, (7) allergic reactions or contraindications to benzodiazepines, opioids, propofol, flumazenil, naloxone, or drug ingredients, or (8) previously received remimazolam, propofol, or sufentanil.…”