None listed
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients undergoing elective painless gastroscopy; 2. Underweight (BMI<18.5kg/m2) and normal body weight (18.5=BMI<25 kg/m2) Patients; 3. Female aged 18-35; 4. American Society of Anesthesiologists (ASA) physical status classification I-II; 5. Patients who fully understood the contents of the informed consent form and signed the informed consent form before the study.
Exclusion criteria
Exclusion criteria: 1. Allergic to propofol; 2. General anesthetics, sedatives or analgesics were used within two weeks before gastroscopy; 3. Patients with upper airway disease, such as airway occupying, a history of upper respiratory tract infection within two weeks; 4. Pregnancy or lactation; 5. Patients with difficult airway; 6. Patients with abnormal liver and kidney functions; 7. Patients who refuse to participate in this study; 8. Other situations not suitable for participation considered by researchers in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| effective dose of propofol; | — |
Countries
China
Contacts
Beijing Friendship Hospital, Capital Medical University