The Effects of Remimazolam on the Incidence of Hypoxia During Sedated Hysteroscopy for Assisted Reproduction in Overweight or Obese Patients

Exclusion Criteria

• •1. SpO2 \< 95% in patients inhaling air upon entering the room.
• •2. Diagnosed with chronic obstructive pulmonary disease (COPD) or currently suffering from other acute and chronic lung diseases requiring long-term or intermittent oxygen therapy.
• •3. Patients with a history of mental and neurological disorders: such as depression, severe central nervous system depression, Parkinson's disease, basal ganglia disease, schizophrenia, epilepsy, Alzheimer's disease, myasthenia gravis, etc.
• •4. Patients with severe liver dysfunction.
• •5. Patients with severe renal insufficiency (requiring dialysis before surgery).
• •6. Severe heart failure (METS \< 4).
• •7. History of drug abuse and/or alcohol abuse within the 2 years preceding the screening period (consuming more than three times the standard alcoholic beverages daily, approximately 10g of alcohol, or equivalent to 50g of Chinese alcohol).
• •8. Allergies or contraindications to benzodiazepines, flumazenil, opiates and their rescue medications, propofol, eggs, or soy products.
• •9. Breastfeeding women.
• •10. Patients whom investigator believe are unsuitable for participating in this trial.