None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Children aged <10yr, ASA I-II grades, elective surgery; 2. No history of central nervous system disease, no history of mental and psychological diseases, no contraindications to general anesthesia, etc.; 3. No history of suffocation rescue at birth; 4. Have not used sedative drugs and opioids within 24 hours; 5. No obvious metabolic system disease and abnormality of respiratory and circulatory system.
Exclusion criteria
Exclusion criteria: 1. Allergic reactions during the perioperative period, or sudden changes in the metabolic state of the whole body; 2. Those who cannot cooperate with the collection of exhaled breath before or after surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Exhaled Breath Metabolic Indicators; | — |
Countries
China
Contacts
First Affliated Hospital, Sun Yat-sen University